Unique silvering of the leaves is the characteristic symptom induced by feeding of immature stages of silver leaf whitefly which releases a toxin inducing the unique pattern on the leaves.
Cucurbit Crop & Disease Management Resources
Plant Disease clinics in the USA, Cucurbit disease forecasters, Field & Variety Trials, Cucurbit Variety Trials, Pest Management, Cucurbit Production manuals & handbooks, Disease diagnosis, Disease outbreaks, Extension news, and Cucurbit Grower news.
South Carolina Grower Update | August 12, 2024
As our late-summer and fall plantings get underway, keep in mind two cucurbit insect pests that worsen around this time: whiteflies and caterpillars.
South Carolina Grower Update | August 5, 2024
Winds and rain from Hurricane Debby may bring fungal spores or bacterial cells into fields in South Carolina. Before the rain starts, cucumber, cantaloupe, pumpkin, and watermelon crops should be sprayed with a fungicide to protect them from downy mildew
ONvegetables VCR | August 1, 2024
Phytophthora infections are being reported in watermelon, pumpkin and squash across the SW Ontario growing region. Once established in a field, there are no effective treatments that will control the spread. If the infection is limited to an isolated area, and has not begun to spread, destroying the infected plant may prevent further spread.
Cucurbit Downy Mildew updates August 1, 2023 | ipmPIPE
Michigan Cucurbit crop report – July 31, 2024
All Cucurbit crops are being harvested, except pumpkins.
Stay vigilant against downy mildew and Phytophthora pathogens. Downy mildew on cucumber has been confirmed in 13 Michigan counties across the major production regions.
Phytophthora crown and fruit rot symptoms can include blighting of the plant’s petioles and crown that lead to wilting. Fruit should not be harvested from regions of the field that are showing Phytophthora symptoms.
South Carolina Grower Update | July 31, 2024
Collapsing Vines in Cucurbit Fields
Fusarium is common in cucurbit fields. Starting with clean seed and crop rotation are two important management principles.
