The three major pests of flowers and trees and their control

Aphids, red spiders, and scale insects are the most common types of sucking mouthparts pests that damage flowers and trees. They endanger the variety of flowers and trees, whether it is woody flowers such as Milan, jasmine, rose, smiling, plum, or herbal flowers such as chrysanthemum, geranium, pouch, etc., are not spared.

Aphid mites, also known as armyworms, have the following control methods: (1) 50 grams of fresh pepper or dried red pepper, 30 to 50 grams of water, boiled for about half an hour, and sprayed the affected plants with the filtrate, which has special effects. (2) Use 3 to 4 grams of washing powder, add 100 grams of water, stir into a solution, and spray continuously for 2 to 3 times, the control effect is 100%. (3) Add 600 to 800 times of solution with wind oil, spray the pests with a sprayer, so that the insects are stained with medicinal water, killing pests such as mites and scale insects, the effect is over 95%, and no pesticide is produced on the plants. harm. (4) The washing powder, urea and water are stirred into a mixed liquid at a ratio of 1:4:100, and then sprayed with the plant, which can receive the effect of pest control and fertilization.

Red spider red spider, also known as short-stalked scorpion, is a pest that specifically harms flowers and leaves. The wild cockroaches, prune, and pine needles in the bonsai are also vulnerable to red spiders. The prevention and treatment methods include: (1) soaking with citrus peel and water for about 10 times for a day and night, and filtering to spray the plants; preventing and controlling red spiders and aphids, such as watering flowers, can control the nematodes in the soil. (2) 15 grams of washing powder, 15% of 20% caustic soda, and 7.5 kg of water. The three are mixed and sprayed, and checked after one or two days; the mortality rate of spider mites and mites is 94% to 98%. (3) Take 50 grams of grass ash and 2500 grams of water, stir well, soak for two nights and nights, add 3 grams of washing powder and mix thoroughly. Spray: 3 times a day for 3 days, spray for 3 days every other week, can control aphids, red spiders, Insect pests such as scale insects can be used to control aphids. (4) Use a plate of ignited mosquito coils, place it in the diseased pot, and then tie it with a plastic bag. After an hour or so of smoke, it can be killed by adults or eggs. This is both saving and A good way to get results.

The insect body of the scale insect is covered by a horny carapace. If it is sprayed directly with a drug, it will not work. Control method: (l) use white wine to water, the ratio is 1:2, when the pest is treated, the surface layer of the potting soil is poured. The scale insects begin to move in the spring, and can be poured once in mid-April, and then poured once every half month, for 4 consecutive times. (2) Using 50 ml of vinegar (rice vinegar), soak the small cotton ball in vinegar, and use a wet cotton ball to gently rub the scales on the stems and leaves of the affected plants to kill the scale insects. . This method is convenient and safe, and can achieve the purpose of removing insects, and can make the damaged leaves green and bright. (3) Wipe the diseased branch gently with alcohol, and remove the scale insects, which are larvae that are invisible to the naked eye and can be completely killed. In the second year, there is rarely another scale insect damage.