The three major pests of flowers and trees and their control
Aphids, red spiders, and scale insects are the most common types of sucking mouthpart pests that harm flower trees. They endanger many species of flowers and trees, whether it is woody flowers such as Milan, Jasmine, Chinese rose, smiling, plum, or herbal flowers such as chrysanthemum, geranium, calendula and so on. 1. Aphids, also known as armyworms, include the following methods: (1) Using fresh pepper or 50 grams of dry red pepper, add 30 grams to 50 grams of water, cook for about half an hour, and spray the affected plants with their filtrates. ) Use 3 to 4 grams of detergent, add 100 grams of water, stir into a solution, and spray 2 to 3 times in succession. The control effect is 100%; (3) Add 600 to 800 times of solution with Fengyoujing, use a sprayer. Spraying the pests carefully to make the insects stained with liquid medicine to kill pests such as aphids and scale insects has an effect of more than 95%, but no harm to plants; (4) Wash powder, urea, and water according to 1: The ratio of 4:100, after mixing into a mixture, used to spray the plants, can receive pest control, fertilization at the double effect. Second, the red spider red spider also called short mustache, is a special damage to the flowers of the leaves, flowers, pests, bonsai wild pheasant, querque, pine needles, etc. are also vulnerable to the harm of red spider. Control methods: (1) Use orange peel to soak water for about 10 times a day and night, and then use it to spray plants after filtration to prevent and control spider mites and aphids. For watering, it can prevent and control nematodes in the soil; (2) 15 grams of detergent , 20% caustic soda 15 ml, water 7.5 kg, three sprayed after mixing, one or two days after the inspection, the survival rate of spider mites, Ruoqiang, 94% to 98%; (3) take 50 grams of plant ash plus water 2500 grams Stir thoroughly, immerse for two days and nights, filter, add 3 grams of detergent and mix well, spray once a day for 3 days, and then spray for another 3 days every other week to eliminate the second generation of pests, and also to control locusts, red spiders and shells. Insect pests such as sucking pests can be put into the soil to control aphids; (4) A litter of mosquito coils is placed in the diseased plant pots, and the plastic pots are then used to tie the pots. After an hour or so of smoking, Both adult and eggs can be killed, which is a good way to save and quick. Third, the shell insect scale insect body is wrapped in a horny shell, such as direct spraying with drugs, will not work. Control methods: (1) watering with white wine, the ratio is 1:2, when pests are treated, the surface of the basin soil is poured, and the spirit is very good. The scale insects began to move at 7 degrees Celsius in spring and could be poured once in mid April. After that, once every half month or so, they would be effective for four consecutive times. (2) Use vinegar (rice vinegar) 50 ml, soak the small cotton balls in vinegar, and wipe them with a wet cotton ball on the damaged stems and leaves of the flowers to wipe off the scale insects. . This method is convenient and safe. It can not only achieve the purpose of removing insects, but also make the damaged leaves turn green and bright. (3) Repeatedly wiping the diseased branches with alcohol, the scale insects can be removed, which is invisible to the naked eye and can be completely exterminated. The scale insects were rarely found in the second year. (4) Use diesel oil, washing powder, and water to adjust the proportion of mother liquor at a ratio of 10:0.6:6. At this time, the mother liquor contains 60% milk, diluted with water and containing 30% liquid, on Milan, kumquat and cycads. The scale insects sprayed carefully. One week later, most of the scale insects changed from the original fresh orange to dry state, indicating that this method has a good control effect on scale insects.