Cotton swab + alcohol, kill scale insectsharm Scale insects are the most common insect pests of succulents. They begin to break out in early spring. They suck the sap from the stems and leaves, causing the succulents to grow poorly and, in severe cases, wither and die. Location Scale insects usually hide in the center of leaves, on the back of leaves, on dead leaves, and in the gaps between dense leaves. They hide so deeply that it is easier to remove them with a cotton swab. The specific steps are as follows: Elimination method Prepare 75% medical alcohol, wet a cotton swab, and rub the infested area vigorously. After a few minutes, you can see that the body has become a very small dot. If the scale insects are very serious, you need to spray pesticides, 800-1000 times diluted Supusha, spray on the infested parts according to the instructions; I would also like to remind everyone that when changing the soil in spring, burying a little furadan in the soil can play a preventive role, but the drug is only effective for 3 months. Specific medicine to kill red spider mitesharm Succulents of the Euphorbiaceae, Asteraceae, and Liliaceae families are particularly susceptible to red spider mites, which suck the sap from young leaves, causing the leaves to gradually develop brown spots and eventually die. Location When you find spots and dry leaves, look at the back of the leaves to see if there are spider webs or very small red/white/dark insects. If so, they are basically spider mites. Elimination method 1. First remove the spider web with a cotton swab, and then use folk remedies to inhibit its spread, such as: dilute soap liquid 50 times with water, dilute tobacco liquid 25 times with water, dilute boiled chili water 10 times with water, etc. 2. Red spider mites are mites, so use specific medicines to kill them completely, such as trichloronate, golden manzhi, and icariin. Poor ventilation leads to whiteflies spreading wildlyharm Whiteflies are mainly caused by poor ventilation. They suck juice from the back of leaves, secrete nectar, and bring various molds, causing the leaves to turn yellow and fall off, and produce black powder and mildew spots. Elimination method 1. Isolate immediately in the early stage of the disease, otherwise it will be highly contagious; rinse thoroughly with clean water, especially the roots, then soak in a carbendazim bath, ventilate and dry, then completely change the soil. 2. If whiteflies have spread to the entire plant, it is recommended to use dimethoate, dilute it 1000 times and spray it to kill the insects. Two days after spraying, use a strong stream of water to wash away the killed insects together with the black powder. Note: Wear a mask during the entire operation and wash your hands in time. Killing aphids with toothpicksharm Succulents of the Crassulaceae and Asteraceae families are prone to aphids, which suck the juice of young leaves, causing their growth to slow and the plants to weaken. Elimination method When the number is small, use a toothpick or other sharp tools to stab the aphids to death; if the damage is serious, use imidacloprid, dilute it 1500 times and then spray it. Hijikata kills the black flyharm Dark, humid, hot and unventilated environments are particularly prone to breeding black flies, which reproduce quickly and can be very deadly if they become rampant. Small black flies like to eat young leaves, rhizomes and seedlings of succulents, causing the leaves to turn yellow, rot, and grow weakly, and can also cause bacterial infection. Elimination method 1. Attraction method: Place a black light or a yellow insect trap with a special smell slightly above the flower pot. 2. Garlic to kill insects: Crush the garlic heads, add half a pound of water and soak for an hour, then spray it on the infested areas. Spray once every three days. Do it three times in a row and it will be effective. 3. Kill insects with mosquito coils: Light a mosquito coil in a flowerpot, cover it with a plastic bag or a plastic bucket, seal it for 12 hours, and all insects can be killed! 4. Spraying: Use imidacloprid, trichlorfon, and flower protector to spray once every 5 days. 3 to 4 times in a row can kill the larvae and adults. Remember to wear a mask and wash your hands with soap after spraying. |
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