Tipe NEKROTIS

• Meliputi gejala yg muncul sbg akibat kematian sel-sel secara cepat, yg akhirnya dpt pula menyebabkan kematian jaringan, organ, bahkan tanaman secara keseluruhan

HYDROSIS (water soaked lesions)

Hydrosis of Aglaonema leaf, caused by Erwinia sp

Hydrosis of Phalaenopsis orchid leaf, caused by Burkholderia gladioli

Phalaenopsis bacterial leaf BLIGHT, caused by Burkholderia gladioli

Late BLIGHT on tomato, caused by Phytophthora infestans

Guava algal leaf SPOT, caused by Cepaleuros

▼

▲Leaf BLOTCH on grape, caused

by Briosia ampelophaga

NECROSIS caused by downy mildew (Plasmopara viticola) ► on a grape leaf

◄ Target spot (SHOT-HOLE) of tobacco, caused by Cercospora nicotianae

SOFT ROT of melon, caused by Pectobacterium (Erwinia) carotovora subsp. carotovora

Potato SOFT ROT caused by Erwinia carotovora (1) and potato Fusarium DRY ROT (2)

1

GUMMOSIS in a citrus tree, caused by Phytophthora cithrophthora

▼• RESINOSIS on a conifer with

Armillaria infection▼

zonate CANKER on apple, caused by Nectria galligena

▼ BLEEDING CANKER on oak with sudden death disease (Phytophthora ramorum)

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Bacterial WILT disease of melon, caused by Erwinia tracheiphila

• Tomatto WILT, caused by Ralstonia solanacearum

DIE BACK: Duch Elm Disease (Ceratocystis ulmi) and the insect vector (Scolytus multistriatus)

◄ White RUST caused by Oomycetes in the genus Albugo (Albugo candida on a brassica leaf)

◄ RUST on groundnut, caused by Puccinia arachidis

ANTHRACNOSE on mango, caused by Glomerella cingulata (anamorph: Colletotrichum gloeosporioides)

ANTRAKNOSE on avocado, caused by Colletotrichum gloeosporioides

DAMPING OFF on soybean seedling

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