![]() Orius 3.6F (Group 3) at 4 to 6 fl oz/A on 10- to 14-day intervals.Applications should be directed to provide coverage of the lower stem area. Omega 500F (Group 29) at 0.75 to 1.5 pints/A on a 7- to 10-day interval.Refer to label for appropriate rate per application volume. LifeGard WG (Group P6) at 1 to 4.5 oz/A on 7- to 14-day intervals for activating plant resistance.Previsto at 0.75 to 2 quarts/A on 5- to 7-day intervals.Kocide 2000 at 1 to 2.25 lb/A or Kocide 3000 at 0.5 to 1.25 lb/A on 5- to 7-day intervals.Cuprofix Ultra 40 Disperss at 1.25 to 2 lb/A on 5- to 7-day intervals.24-hr reentry for greenhouse use 48-hr reentry for all other applications. Badge SC at 0.5 to 2.5 pints/A on 5- to 7-day intervals.Copper products (Group M1) are not recommended as stand-alone materials.Echo 720 (Group M5) at 2 to 3 pints/A on 7-day intervals.Bravo Ultrex (Group M5) at 1.8 to 2.7 lb/A.Bonide Fung-onil (Group M5) is available for home gardens.Chlorothalonil formulations (Group M5) are labeled.Fontelis at 12 to 16 fl oz/A on 7- to 14-day intervals.Endura at 6.5 oz/A on 7- to 14-day intervals.Do not make more than two (2) sequential applications before alternating to a labeled fungicide with a different mode of action. Carboxamide (Group 7) formulations are registered for use.Avoid overhead irrigation when possible.Store squash slightly below 50☏ if possible.After harvest, cure squash 2 weeks at 75☏ to 85☏.Use plastic mulch to prevent infecting fruit that rests on mulch.Rotating out of cucurbits at least 2 years is the best control.The fungus causes a dry rot of the squash flesh. Later the spot becomes covered with white mycelium and tiny black fungal fruiting structures (pycnidia and perithecia). Regardless of where the lesion occurs, a gummy exudate is usually in the spot's center. On fruit, the fungus causes circular water-soaked spots. Symptoms On leaves, brown to black circular spots generally associated with the leaf margins progress toward the center of the leaf. The fungus will not grow below 50☏ and can attack all parts of the plant. A small wound on the fruit, such as a fingernail scratch, is sufficient for disease development. The fungus will not survive in soil without cucurbit refuse or other cucurbit hosts. Cause A fungus, Didymella bryoniae (asexual: Phoma cucurbitacearum), which overwinters on crop refuse and attacks numerous other cucurbits.
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