Banyan sooty moldSooty mold often occurs in high temperature and high humidity environments, and is often accompanied by the appearance of scale insects and aphids. When the disease occurs, black spots appear on the leaves and a black powdery substance appears. Prevention and control methods: Strengthen maintenance, reduce air humidity, and increase ventilation; use a brush dipped in water to clean the spots; spray pesticides in time. Although they cannot be seen with the naked eye, there must be small insects in these spots. Banyan aphidsAphids have double-sucking mouthparts that can secrete "honeydew". I believe that friends who are interested in conservation have already experienced the extent of the harm caused by aphids, so don't provoke them easily. Prevention and control methods: When a small amount of pests are found, wipe them with a cloth dipped in clean water or soapy water to remove the insects and prevent the pests from continuing to spread. Then spray the insecticide evenly, especially on the back of the leaves and in the gaps. Banyan tree red spiderRed spider mites are the most common type of banyan tree pest. Wind, rain, water, and crawling animals will carry and transfer the bacteria to the plants, where they usually spread from bottom to top and gather on the back of the leaves to cause harm. Prevention and control methods: Red spider mites are most harmful in May and June every year. When they are found, spray the pesticide in time and use trichloroacetic acid sulfone powder. Spray once every 10 days. To completely eliminate it, spray 3 to 4 times. Banyan scale insectThere are many types of scale insects, and those that often harm banyan trees include the wax mealybug and the tortoise wax scale. They mainly parasitize on leaves and tender branches, sucking nutrients from the plants, causing great harm. Believe me, when one or two scale insects appear on the banyan tree, you may ignore them, but when a large number of them appear, the banyan tree has become their territory, and it will be very difficult to resist the enemies! |
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