What to do if a mango tree gets sooty mold? Key points of integrated control techniques
I. Causes of mango flower and fruit drop 1. If the mango flowering period and young fruit period encounter low-temperature rainy weather (temperature below l1.5°C) and it lasts a long time, flower and fruit drop will be severe. The flower spikes are damaged and die, a large number of deformed fruits and abortive fruits appear, and they easily fall off naturally. 2. Pests and diseases damage Pests that harm mango...
Fungal disease. At present, 6 pathogens causing mango sooty mold have been discovered in China. It damages leaves, shoots, and fruits, affecting leaf photosynthesis and fruit appearance.Control methods: First, reasonable close planting and pruning to keep the canopy ventilated and light-transmitting. Second, focus on controlling pests such as aphids, scale insects, flat-headed leafhoppers, and white moth planthoppers. When using insecticides, 1000-fold potassium permanganate solution can be added. Third, in the early stage of the disease, spray 0.5% half-strength Bordeaux mixture or 0.3 Baume degree lime sulfur mixture.