For producers who are actively scouting for the disease, symptoms start as circular yellow areas on the leaves. As the infection progresses, growth of the fungus appears and can be observed on the underside of the leaves. “White powder” can be viewed on both surfaces of the leaves and stems as the tissue decays.
UF/IFAS Extension
Florida Watermelon Producers Should Guard Against Powdery Mildew
Powdery mildew is different than most of the other major watermelon diseases in that it can become active under relatively dry conditions.
Melonworms and Pickworms in Watermelon
Caterpillar pressure has increased to moderate levels in Homestead, Florida, though beet armyworm was reportedly at high levels in okra. Rindworm damage was also reported from melonworms and pickworms in watermelon.
Fusarium wilt in N. Florida watermelon
Insects in North Florida watermelon fields
Plant bugs are in the stink bug family. They are a piercing, sucking insect. Under real high populations, they prefer to get on the stem attachment of the watermelon fruit and cause wilting and stress in the plant.
Early watermelon crop survives frost events
Producers are very fortunate the cold temperatures were not more impactful, considering how early this year’s watermelon crop was planted in the region.
Early planting for Florida melon farmers
South Florida pest and disease hotline | March 2023
UF/IFAS entomologists report high whitefly populations on all crops. Scouts are reporting increasing whitefly pressure on vegetable crops with silverleaf symptoms showing on squash.
