Control techniques of three major insect pests in flowers

Aphids, red spiders and shell insects are the most common piercing mouthparts pests that harm flowers and trees.

I. aphids

Aphids, also known as armyworm, its control methods are as follows: (1) use 50 grams of fresh pepper or dry red wine pepper, add 30 to 50 grams of water, cook for about half an hour, spray the damaged plants with its filtrate, and have a special effect. (2) use 3 to 4 grams of washing powder, add 100 grams of water, stir into a solution, spray 2 to 3 times continuously, and the control effect is up to 100%. (3) adding 600 to 800 times water solution with wind oil essence, spraying insect pests with sprayer, the insect body is stained with medicine, and the effect of killing aphids, shell insects and other pests is more than 95%, but will not cause drug damage to the plant. (4) the mixture of washing powder, urea and water at the ratio of 1 ∶ 4 ∶ 100 can be used to spray plants, which can kill insects and fertilize two birds with one stone.

2. Red spider

Red spiders, also known as short-whisker mites, are pests that specifically harm flower leaves and flowers. Wild elm, sparrow plum and five-needle pine in bonsai are also vulnerable to the harm of red spiders. The control methods are as follows: (1) soak citrus peel with water for about 10 times for one day and night, filter and spray plants to control red spiders and aphids, such as watering flowers, can control nematodes in the soil. (2) 15 grams of washing powder, 15 milliliters of 20% caustic soda and 7.5 kilograms of water were mixed and sprayed. A day or two later, the mortality rates of adult mites and nymph mites of red spiders were 94% to 98%. (3) fully stir 50 grams of plant ash with 2500 grams of water, soak and filter for two days and nights, add 3 grams of washing powder and spray evenly, once a day for 3 consecutive days, and spray for 3 days every other week, it can control prickly sucking pests such as aphids, red spiders and shell insects, and maggots can be controlled by putting them into the soil. (4) place a plate of ignited mosquito-repellent incense in a pot of diseased plants, then tie it tightly with a plastic bag. After smoking for about an hour, both adults and eggs can be killed, which is a good way to save and achieve quick results.

3. Scale insects

The shell worm's body is wrapped in a horny carapace, and it will not work if it is sprayed directly with medicine. Control methods: (1) using liquor to water, the proportion is 1 ∶ 2, when controlling insects, pour through the surface layer of basin soil. Scale insects begin to be active in spring and can be watered once in mid-April, and then watered every half a month or so for four consecutive times. (2) after soaking small cotton balls in vinegar with 50 ml of vinegar, the shell insects can be wiped off and killed by gently wiping the damaged stems and leaves with wet cotton balls. This method is convenient and safe, which can not only achieve the purpose of disinfestation, but also make the damaged leaves green and bright. (3) gently and repeatedly wiping the diseased branches with alcohol can get rid of the scale insects, and even the larvae invisible to the naked eye can be completely killed. In the second year, there are few more scale insects.