ZOLTÁN IMREI, MIKLÓS TÓTH · ZOLTÁN IMREI, MIKLÓS TÓTH. Plant Protection Institute,...

ZOLTÁN IMREI, MIKLÓS TÓTH

Plant Protection Institute, Agricultural Research Centre, Hungarian Academy of Sciences, Budapest, Hungary

International Conference on the German Diabrotica Research Program,Berlin, 14-16 November, 2012

The place of different sampling methods

Absolute methods (simple, easier to correlate)

Relative methods (at low population densities, less labourintensive, often closer to every-day practice)

A combination of different methods is optimal

A relative method…

… trapping with lures

Diabrotica species Absolute structure Chemical Reference

D. balteata 6R,12R6,12-dimethyl-

pentadecane-2-on

McLaughlin et

al. (1991)

D. undecimpunctata

howardi

D. undecimpunctata

undecimpunctata

D. undecimpunctata

duodecimpunctata H

10R (++)

10R (++)

Unknown

10-methyl-2-tridecanon

Guss et al.

(1983a)

D. virgifera virgifera

D. virgifera zeae

D. barberi

2R,8R (++), 2S,8R (+)

2R,8R (++), 2S,8R (+)

2R,8R (++), 2S,8R (-),

2S,8S (--)

(8-methyl-2-

decyl)propionate

Guss et al.

(1982), Guss et

al. (1984),

Guss et al.

(1985)

D. longicornis

D. lemniscata

D. Porracea

2S,8R (++), 2R,8R (--)

2S,8R (++), 2R,8R (+)

2S,8R (++)

(8-methyl-2-

decyl)propionate

Guss et al.

(1982), Guss et

al. (1984),

Krysan et al.

(1986)

D. cristata 2S,8R (++)(8-metihyl-2-

deciy)acetate

Guss et al.

(1983b)

mea

n c

atc

h (

+S

E)

0

10

20

30

40

50

60

70

a b a a a * b* * * *

Szekszárd, Tolna county, Hungary July 20 - August 23, 2001.

Total caught in test:

1764 beetles

Bait composition:

rac-8-methyldecane-2-yl propanoate

rac-8-methyldecane-2-yl acetate

rac-8-methyldecane-2-one

(+)-8-methyldecane

(+)-8-methyl-1-decene

CLICK BEETLE AND WIREWORM MONITORING

• PHEROMONE TRAPS pest species occure inEUROPE• ONE inspection plus maintanance!!• 2-3 pest species/site

• Wireworms could be trapped in areas of high pheromone trap catches

•Preliminary tresholdsare available

PAL for Diabrotica

males

Plant Protection Institute,Centre for Agricultural Research,Hungarian Academy of Sciences,

Budapest, HUNGARYe-mail: csalomon@julia-nki.hu

internet: www.julia-nki.hu/traps

VARb3k for Tropinota

(Epicometis)KLPflor+ for Diabrotica

females

RAG for many

moths

VARL+ for

noctuids

VARb3 for Cossus

or Anomala

PALz for

Rhagoletis

TAL for

Bothynoderes