Types of common biological pesticides for flowers
Biological pesticides generally refer to the use of biological living organisms to control pests and diseases. They have the characteristics of no residue, no pollution, no pollution to the environment, and can be specifically applied to related diseases and pests. At present, the most widely recognized applications at home and abroad are bacteria, antibiotics, insect hormones, entomopathogenic nematodes and insect viruses. Control of flower leaf pests First, insect growth regulators . The chlorfenapyr series insecticide is a new insect growth regulator, and its insecticidal action mechanism is to inhibit chitin synthesis of insect epidermis. The chlorfenapyr is mainly a stomach poison, but it can also invade the insect epidermis. The product has good control effect, long residual effect period, low control cost, rain-resistant showering, pest resistance, and resistance to flower plants, humans and animals and environmental safety. Second, antibiotics series of pesticides. Qiqisu (1.8%, 0.9%): Qiqisu is also known as Aifuding. The active ingredient of this drug is avermectin, which is widely used at home and abroad. It can effectively control a large number of herbaceous mites and other pests that are insensitive or resistant to common pesticides, such as spider mites, leaf miner moths, moths, scorpions, venomous moths, hibiscus, etc. Sucking flower pests. It has stomach poisoning and contact killing effects on mites and other pests. Compared with chemical pesticides, the predation and parasitic beneficial insects recover faster after using the drug, which is conducive to ecological balance. The drug is easily decomposed in the presence of oxygen and light, and has no residue, and is beneficial to humans and animals and flower plants. Other Cube Tray,Cake Decoration,Egg Cooker Leqishi Plastic Products Co., Ltd. , http://www.plastic-food-containers.com
Second, it is a bacterial pesticide - Bt emulsion. Bt emulsion is a microbial pesticide of Bacillus thuringiensis, belonging to the bacterial insecticide of Bacillus. Its main insecticidal ingredient is hemispore crystals. The drug has become the main biocide widely used in countries around the world. The pathogenic mechanism of Bt emulsion is that Bt insecticidal toxin causes disease in the digestive tract of the pest to die. After eating the leaves with Bt emulsion, the leaf-eating pests cause convulsions, stop eating, slow response, and diarrhea. Later, the black ring appears in the abdomen and gradually expands to the whole body, eventually causing poisoning. After the pests die, they become black soft, rot, hang up or die on leaves and branches. Bt microbial agents have pathogenic and toxic effects on various lepidopteran larvae and spider mites, such as the heartworm, yellow thorn moth, and locust moth, which are mainly used to control larvae of lepidopteran pests.
Third, plant pesticides, mainly including the following four.
1% smoke·Bai·oil: multi-standard Chinese herbal plant emulsifiable insecticide, can also kill quickly against insects that are resistant to development, with good degradation, no residual toxicity, safe use, pollution-free, pollution-free, etc. Stimulate growth.
Baicao No.1 (0.6% matrine·lactone aqueous solution): It is made up of various plants such as Niuxin Puzi and Sophora alopecuroides and Chinese herbal medicines, which are prepared by pulverizing, dissolving, adding additives and penetrant. The mechanism of action is based on contact killing, supplemented by stomach poisoning, which promotes flower growth and can be used to control various kinds of aphids and leaf-eating pests of flowers.
Hundreds of insects (1.2% smoke · ginseng emulsifiable concentrate): It is a plant-based pesticide. The active ingredients are nicotine and matrine, which have stomach poisoning, contact and fumigation effects on insects. It is low-toxic to humans and animals, has no pollution to the environment, and has no phytotoxicity to flowers.
Fruit and vegetable net (0.5% alizarin emulsifiable concentrate): It is a plant pesticide. The drug is highly effective, safe, low-toxic, low-residue, and does not cause phytotoxicity to flowers. At the same time, it has stomach poisoning, contact killing and certain antifeedant effects.
Control of flower sucking pests, fungal pesticides, mainly mites.
Quercetin is a new fungal bio-pesticide. The main insecticidal ingredient is an ester-soluble sterol compound. It has low toxicity, fast knockdown on aphids, and kills leafhoppers, and does not harm grasshoppers, ladybugs, etc. Beneficial insects have a growth-promoting effect on flowers.
Liuyangmycin (10% water preparation): an acaricide, a new type of antibiotics.
Huaguangmycin (2.5% powder preparation): a new type of antibiotic acaricide, which does not pollute the environment, has no residue in the air and soil, and has a protective effect on beneficial insects.
Third, plant pesticides, mainly guard birds (0.5% cucurbitacin), is a kind of plant pesticides, with cucurbitacin alcohol solution as the main raw material, for all kinds of aphids, especially the aphid that is easy to produce resistance The best, also has a certain effect on the leafhopper.