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Watch Your Beans and Potatoes for Potato Leafhoppers by Carol MacNeil (from the Cornell Vegetable Guidelines and Organic Guide*)
Potato leafhoppers (PLH) are very small insects which can cause significant yield-robbing injury on a number of crops in our region including potatoes, snap and dry beans, and al-falfa. They are currently present at low to moderate levels in unprotected crops. Storms moving from the south bring up waves of PLH adults. Warm, dry weather speeds popula-tion growth. Both the winged adults and their tiny nymphs probe and feed on crops, caus-ing damage. PLH’s very small size, pale green color and secretive behavior make them diffi-cult to see. Often crops show some “hopperburn” before growers realize they have an infestation.
PLH adults are narrow and wedge-shaped, iridescent green in color and 1/8 inch long (Fig. 1). Eggs are laid singly on the under-sides of leaves where the nymphs remain when they hatch. Both adults and nymphs are very active, running forward, backward or sideways. When foliage is disturbed the adults quickly fly up in the air before settling down again. The symptoms produced by PLH feeding is called "hopperburn” (Fig. 3, next page). These areas become flaccid and yellow, then desic-cate, turn brown and die, due to a toxin the in-sects inject while feeding. Leaf curling may also oc-cur (Fig. 2). The entire process takes four to five days. Signifi-cant stunting can occur in uncontrolled infestations.
Examine tractor radiator and air intake screens for adult PLHs during cultivation or potato hilling. The method to determine whether the PLH population has reached damaging levels is to swing a sweep net through the foliage. Check for nymphs
Volume 7, Issue 14 June 29, 2011
Cooperative Extension Cornell Vegetable Program
Cornell University
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Contents General
Sustainable Ag Research & Ed Grants Due 8/1 ....... 3 Small Wind Incentives from NYSERDA .................... 4
Dates .......................................................................... 2
Sponsors ..................................................................... 7
Weather Charts .......................................................... 7
Crops Crops: Tidbits & Insights .......................................... 3 Beans & Potatoes: Watch for Potato Leafhoppers . 1 Cole Crops: New Insecticides for 2011 .................... 3 Onion Fungicides: What You Need to Know ........... 4 Onions: Fungicides for Control of Leaf Diseases ..... 4 Potatoes & Tomatoes: LB Severity Values .............. 5 Snap Beans: Time to Control Molds ........................ 6 Sweet Corn: Trap Network Report, 6/28/11 ........... 5
Continued on page 2
Fig. 2. Potato with severe injury.
Fig. 1
June 29, 2011 Volume 7, Issue 14 Veg Edge Weekly
Page 2
Continued from cover
by examining the undersides of leaves. A hand lens may be necessary to see the tiny nymphs (Fig 4.). If a systemic insecticide like Admire, Cruiser, etc was used on seed or at planting then low levels of adults may be observed in the foliage before they feed and are controlled. Only the presence of nymphs indicates that the insecticide is no longer working. If no systemic insecticide was used then scout fields weekly beginning now for PLH adults and nymphs.
Potatoes are very sensitive to PLH feeding and the treatment threshold is just an average of one adult per sweep with a net, or more than 15 nymphs per 50 compound leaves. Elba, Prince Hairy and King Hairy are resistant to PLHs. Varieties with some tolerance include Elba, Green Mountain, some russets, Snowden, Ontario, Katahdin and Yukon Gold. Red Nor-land is very susceptible.
Bean yields are most likely to be reduced by PLH if damage occurs before bloom. In Cruiser-treated fields: a foliar treatment should not be needed before bloom, but may be needed after bloom if pressure is high. Adults may be observed on plants throughout the season, but they may not be feeding. In non-Cruiser-treated fields: during prebloom, treat when the number of adults exceeds 100 per 20 sweeps with a net, or when more than one nymph per trifoliate leaf is found. On newly emerged beans, lower numbers of PLHs may be damaging. The snap bean variety Labra-dor appears to have noticeable tolerance to PLH while Tenderlake is sensitive.
Many insecticides are effective and labeled for PLH control on potatoes and beans, including pyrethroids (Warrior, etc), chloronicotinyls (Assail, etc), combina-tions (Leverage), Voliam Xpress, Dimethoate (not when crop is in bloom). Pyganic is effective for or-ganic growers but multiple applications will likely be needed for control.
*For details on pest management options on your vegetable crop see the 2011 Cornell Vegetable Guide-lines at: http://www.nysaes.cals.cornell.edu/recommends/ or the 2011 Organic Guides at: http://www.nysipm.cornell.edu/organic_guide/default.asp
Dates... July 7 - Cornell Potato Field Day, 9 am-4 pm, Thompson Vegetable Re-search Farm, 133 Fall Creek Rd, Freeville. FREE. Pre-registration appreci-ated. Contact Don Halseth: 607-255-5460 or [email protected], or Carol MacNeil: [email protected] or 585-313-8796. See potato breeding; fresh market, chipping, specialty variety evaluation; late blight forecasting with email/text alerts; scab management; mustard cover crop for tuber dis-eases. Sponsored by the Empire State Potato Growers.
July 12 - Farm IT: You Probably Still Need a Farm Website 7-9pm, Cornell Food & Agricultural Technology Park, Geneva. $10. To REGISTER: Call Nancy Anderson at 585-394-3977 x427 or send name, address and phone number to [email protected]
July 13 - 2011 Cornell Vegetable Weed Science Field Day Thompson Research Farm, Freeville, NY (10 miles Northeast of Ithaca, Fall Creek Rd, Rt. 366 Extension, 8:00 am Registration, 8:30 am – 11:30 am Vegetable Crop Weed Control (with Dr. Bellinder). $8. Pre-Register by July 11 to Maxine Welcome, 607-255-5439 or [email protected]
July 25 - PowerPoint and Your Farm, 7-9pm, Cornell Food & Agricultural Technology Park, Geneva. Learn how to use PowerPoint software to plan and create a basic digital slideshow. Will also cover how to make posters or signs for your farm or farm stand using this software. $10. To REGIS-TER: Call Nancy Anderson at 585-394-3977 x427 or send name, address and phone number to [email protected]
August 2 - Annual Elba Muck Onion Twilight Meeting Mark your calendars!
August 9 - Protecting & Improving Your Crops From the Soil Up 4-7pm, Mud Creek Farm, McMahon Rd, Victor. Crystal Stewart, CDVSFP, will focus on best management techniques for organic farmers trying to eliminate or prevent garlic bloat nematode and soil-borne pests and pathogens. Learn the management techniques that promote soil physical health, reduce soil compaction and encourage healthy soil mi-crobia. To register, visit NOFA-NY Shopping page or by call (585)271-1979 ext 512.
August 9-11 - Empire Farm Days, Rodman Lott & Sons Farm, Seneca Falls. For more info: 877-697-7837 or [email protected]
Fig. 3
Fig. 4 Fig 3. Bean showing “hopperburn”
Fig. 4. PLH nymph on leaf
June 29, 2011 Volume 7, Issue 14 Veg Edge Weekly
Page 3
CABBAGE AND OTHER COLE CROPS A great week for growing cabbage! Pest pressure appears to be moderate with flea beeltes, diamondback moths and imported cabbage worms being the main pests. The wet spring followed by the warm dry spell was favorable for club root, which can be found readily in some fields.
DRY BEANS The earliest beans went in around June 10th and they are pushing their 2nd trifoliate leaf. Many fields were planted last week and they are sprouting or emerging. A num-ber of growers will plant their first dry beans this week. The Cornell Dry Bean Variety Trial was just planted in Genesee Co.
Scout your fields for weeds when the first trifoliate leaf is close to fully expanded to determine whether a post-emergence herbicide application is needed. Consult “Herbicides for Bean Weed Control” in the April Veg Edge to find the material which will control the seedling weed species in your fields. Note that bean foliage is tender after a few days of cloudy weather, or if temps are 85°F or above.
Mike Stanyard, CCE Field Crops Specialist, and Keith Waldron, NYS IPM Field Crops Specialist, report that soybean aphids (SBA), the vector/carrier of bean virus dis-eases, have been observed in some soybean fields in Western NY near their overwin-tering host, the common, small buckthorn tree. SBA populations are increasing in Wayne and Yates counties. These were tiny winged aphids which most likely just landed on the soybeans. Typically they feed and multiply on soybeans before ex-panding outward into alfalfa, beans, etc. Winged soybean aphids look like extremely tiny flies and are found primarily on the undersides of leaves. They cannot produce offspring on beans.
The first Western bean cutworm (WBC) moths were caught this past week in phero-mone traps in Chautauqua and Tompkins Co. The NYS Dry Bean Industry Committee has funded the operation of a 12 WBC moth trap network across the NYS dry bean production area.
ONIONS Another great week for growing onions! Early yellow transplants have 2 inch bulbs. Several rain days over the past week resulted in an increase in Botrytis Leaf Blight (BLB) across the region. Several fields that were not previously sprayed exceeded the spray threshold of 1 BLB lesion per leaf and will be getting their first spray this week. Purple Blotch remains undetected. Onion thrips (OT) have increased across the re-gion, but remain below the spray threshold of 1 or 3 OT per leaf in the muck areas. In small-scale upland area, several sites reached the spray threshold and will be sprayed this week – see last week’s article for all you need to know about effective OT control in onions.
POTATOES The largest potatoes are now in flower. Plants are very small in many other fields.
Colletotrichum black dot (BD) has caused increasing tuber symptoms in recent years. The disease begins as small foliar lesions which could be mistaken for early blight (EB). Spores washed down to the tubers cause a symptom similar to silver scurf. Re-search has shown that a couple of fungicide sprays, two weeks apart, about the time EB sprays are begun, and before row closure, can decrease BD symptoms on tubers. Fungicides suggested are Quadris F (tankmix) Opti or Top, Headline (tankmix), Revus Top, Catamaran, or chlorothalonil formulations. Note: Repeated use of chlorothalonil leads to EB tolerance.
Colorado potato beetle (CPB) adults, eggs and small to large larvae are all present in some fields. See the May Veg Edge, CPB Resistance Management in Potatoes article, pg 13, for info on all your conventional and organic insecticide choices. Besides list-ing materials by mode of action/chemical class, there’s info on whether products are limited in effectiveness to hatching eggs or larvae. CPB adults are hardest to control. If a systemic seed treatment or in-furrow insecticide (all contain Chloronicotinyl in-secticides) was used at planting avoid using Assail, Actara, Provado, Leverage or Endigo because they contain the same active ingredient. Altacor and Voliam Xpress are effective against all stages of the CPB and are in a different chemical class.
Cole Crops: New Insecticides for 2011 C. Hoepting, CVP: SYNAPSE WG, Bayer: Active ingredient, flubendiamide (IRAC group 28: ryanodine receptor modulator), is a completely differ-ent mode of action for controlling worms in cole crops. PHI = 1 day.
ENDIGO ZC, Syngenta: Active ingredients, thiamethoxam (IRAC group 4A) + lambda-cyhalothrin (IRAC group 3A), essentially Ac-tara/Crusier + Warrior. This combination of neonicotinoid and pyrethroid provide broad spectrum insect control of worms, aphids and flea beetles, and suppression of onion thrips in cole crops. Avoid more than 3 ap-plications of Endigo and other group 4A in-secticides such as Admire, Provado and Lev-erage, before switching to an insecticide with a different mode of action. PHI = 1 day. Federally restricted use.
MOVENTO, Bayer: Active ingredient, spiro-tetramat (IRAC group 23) for control of aphids and onion thrips (via a 2ee label in NY) in cole crops. PHI = 1 day.
CROPS Tidbits & Insights
Sustainable Ag Research & Education Grants Due August 1
The Research and Education program funds outcome-based projects offering research, education, and demonstration projects that engage farmers as cooperators in the explo-ration of sustainable farm practices. Projects should be directed toward research results that will translate quickly into farmer bene-fit, and farmers, extension staff, and other stakeholders should be involved in planning project content. For more information and to look at examples of past Research and Education projects, visit http://nesare.org/get/research-and-education.
June 29, 2011 Volume 7, Issue 14 Veg Edge Weekly
Page 4
Onion Fungicides: What You Need to Know
1) Bravo (FRAC group M5) is an excellent BLB material. Use highest rates (3 pts) when disease pressure is high and on large onions (6-7 leaf and big-ger). Lower rates (1 to 2 pts) may be used when tank mixed with man-cozeb (for DM protection) or another fungicide that controls BLB.
2) Endura (FRAC group 7), Switch (FRAC group 9 + 12) and Rovral (FRAC group 2) provided very good control of BLB in Cornell trials.
3) Mancozeb (FRAC group M3) and Quadris (FRAC group 11) did not control BLB in Cornell trials.
4) Scala 9 oz + Bravo 1.5 pts was the top performing fungicide treatment in Cornell trials for both BLB and PB. Alone, Scala (FRAC group 9) is excellent against PB, and good against BLB.
5) Switch (FRAC group 9 + 12), Rovral, Endura, Quadris, Pristine (FRAC group 11 + 7) and Cabrio (FRAC group 11) all control PB.
6) Bravo and mancozeb do not control PB.
7) Quadris, Quadris Top (FRAC group 11 + 3), Cabrio, Pristine, Vangard (FRAC group 9), Inspire Super (FRAC group 3 + 9) and Quilt Xcel (FRAC group 3 + 11) all need to be rotated to a new chemical class after 1 to 2 consecutive sprays (see labels for details).
At this time, fungicide spray programs should focus on BLB control. PB does not typically show up until early July in trans-planted onions and not until the end of July in direct seeded onions when they have 8-10 leaves. Within the next couple of weeks, fungicide programs on trans-plants should include a PB material. The use of mancozeb as a protectant against downy mildew is optional; it may hold DM back a little bit, but when conditions are right, DM will still come in. Typically, once fungicide programs begin, they are contin-ued weekly. However, there is much op-portunity to save on fungicides when sprays are not started until BLB reaches or exceeds 1 BLB per leaf or until PB is first detected. Be mindful of label require-ments to rotate away from certain fungi-cides after 1-2 sequential applications, especially for FRAC group 11 and 3 fungi-cides – see new fungicides for 2011.
C. Hoepting, CVP:
New Fungicides for Control of Leaf Diseases in Onions, 2011
C. Hoepting, CVP: INSPIRE SUPER, Syngenta: Active in-gredients, difenoconazole (FRAC group 3) + cyprodinil (FRAC group 9), essen-tially Inspire + Vangard, for control of PB, BLB and suppression of black mold. Maximum of 5 sprays per crop cycle. No more than 2 sequential applications before switching to a different mode of action. Scala, Switch, Vangard, Tilt, Quilt Xcel and Quadris Top all belong to the same chemical classes as Inspire Super and cannot be used as rotation partners.
QUADRIS TOP, Syngenta: Active ingre-dients, azoxystrobin (FRAC group 11) + difenoconazole (FRAC group 3), essen-tially Quadris + Inspire, for control of
PRESIDIO, Valent: Active ingredient, fluopicolide (FRAC group B5), for downy mildew control. Apply only in a tank mix with another labeled fungi-cide with a different mode of action. No more than 2 sequential sprays be-fore switching to a different mode of action.
ACTIGARD, Syngenta: Active ingredi-ent, acibenzolar-s-methyl, is a non-pesticidal compound and an inducer of plant resistance. It is now labeled for suppression of Iris yellow spot virus, Xanthomonas leaf blight (bacterial dis-ease) and downy mildew. Apply pre-ventatively.
PB/Stemphylium leaf blight and BLB. Maximum of 4 sprays per crop cycle. No more than 1 application before switching to a different mode of action. Quadris, Quilt Xcel, Pristine, Cabrio, Inspire Super and Tilt belong to these chemical classes and cannot be used as rotation partners.
QUILT XCEL, Syngenta: Active ingredi-ents, propiconazole (FRAC group 3) + azoxystrobin (FRAC group 11), essen-tially, Tilt + Quadris, for control of PB (lower rates) and BLB and downy mil-dew at higher rates. No more than 1 application before switching to a non-group 11 fungicide. Quadris, Quadris Top, Pristine and Cabrio are group 11 fungicides.
Small Wind Incentives from NYSERDA - Rolling The New York State Energy Research and Development Authority (NYSERDA) has increased the funding available to help New Yorkers install small-scale wind turbines that will cut their energy costs and reduce their carbon footprint. The program is available to individual consumers, developers, farmers and others who wish to install "on-site" wind turbines to generate electricity. It will provide funding to support approximately 30 percent of the purchase- and installation cost of wind turbines. Funding totaling $16.6 million will be offered over the next five years and allocated based on the estimated annual electrical output of the turbine. The new program will provide incentives for systems up to 600kW per site not to exceed $400,000 per turbine. Incentives are only available to Eligible Installers and incentives must be passed on to customers. Incentives will not be provided directly to customers who purchase and install their own wind energy systems. Applications are accepted on an ongoing basis.
To learn more, visit http://www.powernaturally.org/programs/wind/incentives.asp?i=8.
June 29, 2011 Volume 7, Issue 14 Veg Edge Weekly
Page 5
*Accumulations start 5/05/11 **Airport stations, with RH increased to estimate field conditions
Late Blight Severity Value Accumulations
It’s been confirmed that the greenhouse tomatoes in Maine which appeared to have LB in early May had the US 22 strain. This strain is well controlled by mefenosam (Ridomil combinations), unlike the other common LB strains which are all resistant.
Tom Zitter’s, Cornell, 2011 Tomato Fungicide Roster and Ratings (for LB, early blight, Septoria leaf spot control) is on the CVP website at: http://blogs.cce.cornell.edu/cvp/files/2011/06/2011-Tomato-Fungicide-Roster-and-Ratings-chart.pdf The Tomato Roster will be in the Veg Edge Weekly next week.
The 2011 Potato Fungicide Roster and Ratings (for LB control) is also on the CVP website at: http://blogs.cce.cornell.edu/cvp/files/2011/06/2011-Potato-Fungicide-Roster-and-Ratings-chart.pdf Copper formulations which are OMRI approved are included on the rosters and are rated against the other fungicides.
For a website with LB resources, info and links to photos check out the LB Blog from Abby Seaman, NYS IPM Program, at http://blogs.cornell.edu/lateblight/. You can subscribe to receive alerts of new LB confirmations in NYS and surrounding areas at the bottom right of the home page.
C. MacNeil, CVP: The weather last weekend was very favorable for the development of late blight (LB) in most locations in the CVP area. LB was just detected on five fields of tomato or potato on the South Fork of Long Island after a very wet week. A 5 day fungicide spray interval is triggered when 6+ severity values (SV) are accumulated in the past week. Locations where 3 – 5 LB SV were accumulated can stay on a 7 day schedule. Check for re-emerging cull potato sprouts and get rid of them! Cover with a couple of feet of soil, cover with a dark tarp, feed to livestock, etc. Spraying with glyphosate may kill the cull tubers eventually but it works too slowly and remains a potential source of LB inoculum for a couple of weeks.
WNY Sweet Corn Trap Network Report, 6/28/11
Abby Seaman, NYS IPM Program
EBC trap catches remain fairly low this week at most locations. Z race moths remain moderate or increasing at a couple of sites. Corn earworm numbers have decreased, with no catches at many locations, and the highest catch this week at four. No fall armyworm were caught this week. A single western bean cutworm was reported from Kennedy, and another site that is part of the western bean cutworm trap network caught a moth this week as well. This is the beginning of the flight.
I’m seeing and hearing about fields at the tassel emergence stage with very high infestations of ECB and CEW larvae in the tassel. Scout tassel emergence stage fields as soon as you able to see down into the entire tassel, and time sprays carefully for maximum effectiveness. In uneven fields, be sure to re-scout unemerged tassels to see if another appli-cation is needed.
Silking fields in areas with low trap catches may not need additional sprays if the tassel emergence applications were effective. Where ECB and CEW moths are still being caught, additional applications may be needed to prevent larvae from entering the ear. Scout the “ear zone” for ECB egg masses and newly emerged larvae. The treatment thresh-old for silking corn is 5% infested plants.
Location Week Total* Location Week Total*
Albion 12 43 Geneva 11 57
Appleton 12 47 Lafayette 21 69
Baldwinsville 9 ** Lodi 3 33
Buffalo** 1 34 Portland 9 46
Ceres 9 42 Ransomville 8 40
Elba * ** Sodus 8 34
Farmington 11 37 Williamson 7 38
Fayette 9 38 Wellsville** 11 47
Late Blight Severity Value Accumulation 6/28/11*
ECB ECB
Location -E -Z CEW FAW WBC
Baldwinsville (Onondaga) 0 3 1 0 0
Batavia (Genesee) 0 4 2 0 NA
Bellona (Ontario) 1 2 0 0 0
Eden (Erie) 0 1 4 0 0
Hamlin (Monroe) 1 10 0 0 0
LeRoy (Genesee) 2 8 0 0 0
Penn Yan (Yates) 0 13 2 0 0
Spencerport (Monroe) 0 4 2 0 0
Waterport (Orleans) 0 3 0 0 0
Williamson (Wayne) 0 0 1 NA 0
WNY Pheromone Trap Catches: June 28, 2011
June 29, 2011 Volume 7, Issue 14 Veg Edge Weekly
Page 6
Snap Beans: Time to Control Molds
J. Kikkert, CVP: When snap beans reach the blossom stage, management of molds should be the top priority. This is because the pathogens that cause gray mold (GM) and white mold (WM) in-fect withering flowers and then spread to developing pods and other tissues. GM develops in dense plant canopies when the weather is warm and moist. WM requires both moist soil conditions and leaf wetness (a light dew is enough). Dry soils and high tempera-tures will inhibit the development of this disease. WM is most abundant when temperatures range from 55-60°F, but will develop at temperatures as high as 85°F. Scout fields with a history of WM. Sclerotia (hard overwintering structures) in the top 1" of the soil sur-face will germinate and produce mush-room cups and spores that will subse-quently infect the plants.
If the weather is conducive to disease, Dr. Dillard (Cornell) recommends two fungicide applications: first at about 10-40% bloom (since % bloom increases about 20% per day) and a few days later (100% bloom) according to weather conditions and label limita-tions. Your first spray will include open blossoms, buds, and blossom initials. Do not wait too long to apply the first spray. There are several options for control of WM and GM in beans. A summary of research trials over the past 10 years is given on page 100 of the 2009 Empire Expo Proceedings (contact Julie if you need a copy of this article). Briefly, Topsin M provided ef-fective WM control 90% of the time. Endura was effective on GM in 81% of the trials. A tank mix of Topsin M (0.7 lb or 14 fl oz) and Endura (5.5 or 5.9 oz) provided effective control of GM (86%) and WM (95%) in 20 trials. Other tank mixes can be used including, Bravo plus Topsin M, Rovral plus Topsin M, and Bravo plus Rovral with varying effec-tiveness on WM and GM. Regardless of the fungicides selected, good spray coverage is needed. Best results have been obtained using high gallonage (50 gal/A minimum) and high pressure (100 to 200 psi). Fungicide sprays must
be directed towards the blossoms for good control.
If you think your white mold control isn’t working, you could be dealing with Phy-tophthora blight instead. This disease might already be present because it has been so wet. Look for dying leaves and foliage where heavy downpours occurred. When it gets on the pods, they become whitish and shriveled. Dr. Dillard is very inter-ested to find beans with Phytophthora blight. If you have suspicious samples, con-tact a member of our team and we will get it to the Dillard lab for confirmation. White mold, gray mold and Phytophthora blight often occur in the same field. For more information on Phytophthora blight, see the June 1st issue of Veg Edge Weekly.
White Mold
Phytophthora Blight
Gray Mold
Volume 7, Issue 14 Veg Edge Weekly
Page 7
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Weather Charts
*Airport stations ** Data from other station/airport sites is at: http://newa.cornell.edu/ Weather Data, Daily Summary and Degree Days.
June 29, 2011
J. Gibbons, CVP:
Rainfall (inch) Temp (°F)
Location Week Month Max Min
Albion 2.59 3.10 82 56
Appleton, South 0.94 1.47 79 54
Baldwinsville 1.76 2.58 85 58
Buffalo* 2.71 3.39 83 58
Ceres 0.88 2.51 84 56
Elba **** **** ** **
Farmington **** **** 83 55
Geneva 0.15 1.03 83 59
Himrod **** **** 86 56
Lafayette 0.04 0.14 85 55
Lodi 0.47 **** 87 57
Lyndonville 0.52 1.02 82 57
Ransomville 0.99 1.73 83 56
Rochester* 1.20 1.45 81 58
Syracuse* 2.53 2.99 85 59
Williamson 0.96 1.23 82 58
Weekly Weather Summary: 6/21 - 6/27
Location 2011 2010 2009
Albion 760 919 658
Appleton, South 662 817 580
Buffalo 809 919 695
Elba *** 919 543
Farmington 783 902 630
Geneva 874 1101 706
Himrod 840 916 660
Lafayette 860 856 653
Lodi 910 1023 ***
Lyndonville 753 909 636
Ransomville 751 905 631
Rochester 836 967 653
Syracuse 1017 977 737
Williamson 766 937 616
Accumulated Growing Degree Days (AGDD) Base 50°F: Jan. 1 — June 27, 2011
Cooperative Extension Cornell Vegetable Program
Cornell University Serving Allegany, Cattaraugus,
Erie, Genesee, Monroe, Niagara,
Onondaga, Ontario, Orleans,
Seneca, Wayne and Yates Counties
Veg Edge Weekly is a seasonal weekly publication of the Cornell Vegetable Program providing information about crop development, pest activity and management, pesticide updates, local weather conditions, meetings and resources.
Veg Edge is published 28 times annually, monthly from October-May and weekly from May-September. If you have any questions about this publication, contact Julie Kikkert at 585-394-3977 x404 or [email protected]. Visit the Cornell Vegetable Program website at http://cvp.cce.cornell.edu/ for information on our research, upcoming events and enrolling in our program.
Cornell Cooperative Extension provides equal program and employment opportunities.
Robert Hadad 585-739-4065 Cell [email protected]
Christy Hoepting 585-721-6953 Cell [email protected]
Julie Kikkert 585-313-8160 Cell [email protected]
Carol MacNeil 585-313-8796 Cell [email protected]
Judson Reid 585-313-8912 Cell [email protected]
Cornell Vegetable Program Extension Specialists
John Gibbons, 716-474-5238 Cell
Katie Klotzbach 585-732-2545 Cell
CVP Assistants
This publication contains pesticide recommendations. Changes in pesticide regulations occur constantly and human errors are possible. Some materials may no longer be available and some uses may no longer be legal. All pesticides distributed, sold or applied in New York State must be registered with the New York State Department of Environ-mental Conservation (DEC). Questions concerning the legality and/or registration status for pesticide usage in New York State should be directed to the appropriate Cornell
Cooperative Extension specialist or your regional DEC office.
Cornell Cooperative Extension and its employees assume no liability for the effectiveness or results of any chemicals for pesticide usage. No endorsement of products or com-panies is made or implied. READ THE LABEL BEFORE APPLYING ANY PESTICIDE.
Yates County Cornell Cooperative Extension 417 Liberty Street Penn Yan, NY 14527
