WSU Extension

Hortsense

Pepper, Eggplant
 
Disease
Curly top (Western yellow blight) 
Mosaic viruses 
Physiological leaf roll 
Verticillium wilt 
Insect
Brown marmorated stink bug 
Flea beetles 
Whitefly 



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Caption: Verticillium wilt on squash
Photo by: R.S. Byther
  
Pepper, Eggplant : Verticillium wilt
(revision date: 6/3/2014)


Biology
Verticillium wilt is caused by a fungus commonly found in the soil. Many species of plants can be affected. Potato and tomato are favored hosts. Infected peppers and eggplants are stunted and have yellow leaves which tend to roll inward. Eggplants first show yellowing of the lower leaves in conjunction with stunting of plants and discoloration of the vascular system (noticeable when cuts are made into stems). Typically, the fungus attacks the roots and moves throughout the plant via the vascular system. Verticillium is also carried in infected eggplant seed.
Management Options


Non-Chemical Management
  • Clean up plant debris and destroy or discard (do not compost) diseased materials.
  • Crop rotation may be useful. Plant resistant species in infected soil. Vegetables reported to be resistant to Verticillium wilt include pea, lettuce, celery, asparagus, and bean. Contact your county Extension agent or WSU Master Gardeners for more information.
Select non-chemical management options as your first choice!

Chemical Management

None recommended

Images

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Caption: Verticillium wilt on squash
Photo by: R.S. Byther
Caption: Vascular discoloration from Verticillium wilt on impatiens
Photo by: R.S. Byther