12/18/2023 0 Comments Fungicide for southern blightInsects, tools and water all spread fungus spores which remain in soil for up to two years Early leaf drop leads to fruit loss and sunscald. It spreads rapidly causing loss of older leaves, then infects new foliage, and can quickly move through an entire crop. Symptoms are similar to early blight, but septoria more often appears at first fruit set. Septoria leaf spot is caused by the Septoria fungus and appears on leaves as multiple small, dark, round circles. Practice good weed control and rotate crops every two years along with other nightshades. Remove and dispose of rotten fruit and debris. Use certified seed and plant in well-draining soil. Prevent anthracnose by staking plants, mulching, and watering at soil level. Avoid letting tomatoes overripen on the vine. Apply tomato fungicide to your entire crop at the first sign of infection or when weather conditions are favorable for disease to take hold. Dozens of weeds and other plants host this fungus which overwinters in soil and plant debris.įungicides are more effective used as a preventive. Infection starts in small Immature fruits but symptoms don't appear until ripening. Leaves may develop small, round spots with yellow halos. Small, sunken, water-soaked spots appear on fruit and increase in concentric circles causing tomatoes to rot. The Spruce Home Improvement Review BoardĪnthracnose is a disease infecting mostly fruits caused by Colletotrichum coccodes, a fungus that favors warm temperatures and wet conditions.
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