 Photo by Howard F Schwartz, Colorado State University, United States; Bugwood.org |
- The risk is from exotic defoliating strains to which the local varieties have little or no resistance (non-defoliating strains are present in Australia)
- Extremely wide host range, including vegetable, fruit and broadacre crops
- Leaf mottling, vascular peppering, total defoliation, boll shedding
- When the stem is cut lengthways, vascular discolouration exhibits flecking of the inner tissues
- Spread by spores in water, soil and infected plant material, clothing and equipment
- Non-defoliating strains of Verticillium dahliae occur in Australia. The defoliating strain VCG 1A is known to occur in Australia and is currently under review.
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High priority pest of: Cotton, Olives, Almonds, Chestnuts, Pecans, Pistachios, Walnuts
Scientific name: Verticillium dahliae (exotic defoliating strains)
EPPRD Category: 3
Life Form: Fungus
Pest Documents
FS: fact sheet
CP: contingency plan
DP: diagnostic protocol
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