Insecticides commonly used in flowers and potted plants

Potted plants evolved from traditional Chinese garden art. As for the cultivation of ornamental plants, originated in ancient garden landscaping, in order to imitate the natural landscape to create gardens. There are Yao Shen in Xia Dynasty, Lu Tai in Shang Dynasty and Lingtai in Zhou Dynasty.

1. Trichlorfon is an organic phosphorus preparation with high efficiency and low toxicity, which has strong stomach toxicity and contact killing effect on pests. The poison speed is fast, in the field efficacy period of 4-5 days, commonly used solution 1000-1500 times spray control rose sawfly, big lionfish moth, pseudo-short-fronted negative locust, cotton leaf roller, geometrid, leafhopper, small cutworm and other pests, trichlorfon can not be mixed with alkaline chemicals.

2. Dichlorvos is a highly effective and low-toxic organophosphorus preparation, which has strong contact, fumigation and stomach toxicity, wide insecticidal range, fast speed and short efficacy period. 50% EC 1000 times or 80% EC 1500 times spray control whitefly, spider mites, green bugs, aphids, scale insects, pomegranate moths and other pests. Be careful not to mix with alkaline chemicals. Dichlorvos emulsifiable concentrate is volatile, so the bottle cap must be covered after taking the medicine. When the concentration is high, it is easy to produce phytotoxicity to cherry blossoms and plum blossoms.

3. omethoate has contact, internal and stomach toxicity, can control many piercing and chewing mouthparts pests, and has greater acute stomach toxicity to humans and livestock. Common 40% EC 1000-1500 times spray control scale insects, aphids, whitefly, Tetranychus cinnabaris, Lygus lucorum, thrips, leafhoppers, citrus Spodoptera and other pests. Do not mix with alkaline chemicals.

4, dimethoate is a kind of high efficiency and low toxicity of broad-spectrum organophosphorus pesticides, with contact, internal absorption and stomach toxicity. Generally use 40% emulsifiable concentrate 1000-1500 times solution or 60% wettable powder 3000-5000 times solution spray to control aphids, red spiders, leafhoppers, leaf miners, whiteflies and other pests, can also use 1 gram of medicine after adding 20-40 grams of water, seed dressing 400-500 grams to control mole cricket and other underground pests, plum blossoms, cherry blossoms sensitive to dimethoate, should be used with caution. Do not mix with alkaline chemicals.

5, malathion has contact kill, stomach poison and fumigation effect, high efficacy, a wide range of pesticides, residual effect period of about a week, small toxicity to humans and animals, relatively safe. Common 50% EC 1000-2000 times spray control aphids, red spiders, leafhoppers, thrips, scale insects, chafers and other pests. Malathion stability is poor, efficacy time is not too long, can not be mixed with alkaline or strong acid pesticides.

6. Monocrotophos has strong contact killing effect, both internal absorption and stomach toxicity, wide insecticidal range, efficacy period of about one week, and greater toxicity to humans and livestock. Commonly used 50% EC 2000-4000 times spray control aphids, red spiders, leafhoppers, thrips, green bugs and other pests, can not be mixed with alkaline pesticides.

7. Fenitrothion is a broad-spectrum insecticide with contact and stomach poisoning effects, or killing borers. The efficacy is generally 3-4 days. 50% EC 1000-2000 solution is generally used to control aphids, spiny moths, leafhoppers, fruit borers, scale insects, thrips, mites and other pests, but also 2% powder spraying control, the dosage is generally 1-3 grams per square meter. Cruciferae plants susceptible to phytotoxicity, can not be mixed with alkaline pesticides.

8. Chlordimeform is a kind of high efficiency and low toxicity insecticide, which has antifeedant and internal insecticidal effects on lepidopteran larvae, and has strong contact killing and repellent effects on its adults. General use of 25% aqueous spray 500-1000 times liquid control borers, leaf rollers, moth, spider, scale insects and other pests. Chlordimeform also has good egg killing effect, and has obvious effect on controlling eggs of red spider and leaf roller moth.

9, deltamethrin has a strong contact and stomach toxic effect, the efficacy period is long, up to several months, has a greater toxicity to the skin. Common 2.5% EC 3000-8000 times spray control thorn moths, green moths, cotton leaf rollers, small cutworms, thrips, leafhoppers and so on.

10. Dicofol is an acaricide containing organic chlorine, which has strong contact killing effect, has the effect of killing young mites and eggs, and can destroy the physiological functions of adult mites, making them infertile. The residual period can reach about 1 month. 800-1000 times solution of 20% WP or 1500-2000 times solution of 50% WP are commonly used to control mite pests.

11, dicofol has a strong contact effect, the effect is fast, the mite eggs, larvae, nymph, adults are effective, residual period of 10-20 days. 20% EC 600-1000 times or 40% EC 1000-1500 times is commonly used to control various mites. It cannot be mixed with alkaline pesticides.

12. Furadan is a broad-spectrum, low-residue insecticide with systemic and certain contact effects, which can control chewing and piercing mouthparts insects and nematodes. Commonly used 3%, 5%, 10z5 granules and 75% wettable powder, can control nematodes, scale insects, mites, leafhoppers, borers, sting moths, aphids, thrips and other pests, can not be mixed with alkaline pesticides.

13. Turpentine mixture is a black-brown liquid made of jacaranda and caustic soda, which is strongly alkaline and has a contact effect. Often spray 8-12 times in winter dormancy period or 10-18 times in growing season to control scale insects, whiteflies, red spiders and other pests. Do not mix with alkaline pesticides and calcium-containing pesticides.

14, Metronidazole has contact killing, internal absorption, fumigation effect, fast action, the effect is generally only 2-3 days. Common 25% WP 200-400 times solution, or 20% EC 1000-1500 times solution spray control leafhopper, aphid, whitefly, scale insects and other pests, can not be mixed with alkaline pesticides.