Chlorantraniliprole products such as chlorantraniliprole produce severe resistance in the insecticidal process, leading to a resurgence of the insecticide market in 2018. Products that have been left untouched for more than a decade have come to the stage, including three The highest heat, that is, three components of indoxacarb, guanidine, and chlorpyrifos. The guanidinium is a benzoylurea insecticide developed and produced by Syngenta, and its trade name is US (10% suspension). Insectonitrile is a pyrrole insecticide and acaricide developed by the American Cyanamide Company and produced by BASF in Germany. The trade name is divided (10 suspending agent). Indoxacarb is a dioxin-based insecticide developed and produced by DuPont of the United States. Its trade name is homegrown (30% water-dispersible granules) and hit (15% suspension). The insecticidal effects of the three have their own advantages, and they are superior and inferior. They cannot be generalized. This article makes a simple analysis of the three components from the following aspects for your comparison. 1, insecticide mode Urea urea has stomach poisoning and contact killing effect, no systemic absorption, strong egg killing; insect nitrile has stomach poisoning and contact killing effect, has certain systemic action, does not kill eggs; indoxacarb has stomach poisoning and contact killing effect, no Systemic action, no egg killing; all three are mainly stomach poisoning and contact killing, and the application of penetrant/expanding agent during application will greatly improve the killing effect. 2, insecticidal type The guanidine urea is mainly used to control pests such as leafhopper, diamondback moth, cabbage caterpillar, beet armyworm, Spodoptera litura, and whitefly, thrips, rust tick, etc., especially in the control of rice leaf roller; Nitrile has excellent control effects on drill collars, sucking and chewing pests and mites, especially for the resistant pests of Plutella xylostella, Spodoptera exigua, Spodoptera litura, Liriodendron, Liriomyza sativae, and pea pods. The effects of thrips and red spiders are significant; indoxacarb is mainly used to control lepidopteran pests such as beet armyworm, diamondback moth, cabbage caterpillar, Spodoptera litura, cotton bollworm, tobacco budworm, and leaf roller moth. Therefore, according to the insecticidal spectrum, the comparison is: worm nitrile > guanidine urea > indoxacarb 3, dead insect speed After the urinary urea, the pests contact the medicinal agent and take the leaves with the medicinal agent, the mouth will be anesthetized within 2 hours, so that the food can be stopped, and the crop can not be harmed. Generally, the dead insect peak is reached within 3-5 days. In the insecticide nitrile, the pest activity weakened within 1 hour, and then the spots appeared, the body color also changed, and then the activity stopped, became coma, soft, and eventually died, reaching the peak of dead insects within 24 hours; Insects stop feeding within 0-4 hours, and then paralyzed, the insect's ability to coordinate will decrease (which can cause the larva to fall from the crop), and usually die within 1-3 days after the drug. Therefore, according to the speed of insecticide, it is: worm nitrile > oxadiazepine > guanidine 4, the period of validity Nicurone has a strong egg-killing effect, and the insect control time is relatively long, up to 25 days; the insect nitrile does not kill eggs, and only has a prominent effect on the advanced insects, and the insect control time is about 7-10 days; Do not kill eggs, the size of the lepidopteran pests, the control effect is about 12-15 days. Therefore, according to the retention period, the comparison is: guanidinium > indoxacarb > insect nitrile 5, leaf retention rate The ultimate goal of insecticide is to prevent pests from harming crops. As for whether the pests die faster or slower, they are only the sensory problem of the people. The level of leaf retention is the ultimate indicator of product value. In view of the control effect of rice leaf roller, the leaf retention rate of guanidine urea can reach more than 90%, the carbendazim reaches 80%, and the worm nitrite reaches about 65%; therefore, the ratio of leaf retention rate is: guanidine urea> Indoxacarb > worm nitrile. 6, security There is no phytotoxicity reaction of guanidine urea so far. At the same time, the medicinal agent does not cause sucking pests to re-sick, and it has mild effect on adult worms and feeding spiders; worm nitrile is sensitive to cruciferous vegetables and melon crops, high temperature Or high-dose use is easy to produce phytotoxicity; indoxacarb is highly safe, there is no phytotoxicity, and the vegetables or fruits can be picked and taken on the second day of application. So the safety comparison is: 茚虫å¨>虱螨Urea> worm nitrile 7, medication costs According to the quotation of each manufacturer in 2018 and the dose used, the cost comparison of the drug is: oxadiazepine> chlorfenapyr> guanidine. From the above, we can see the overall feeling of the three in actual use: the first time the guanidine urea is used, the effect is very general, and the continuous use of the sensation is very unusual; the worm nitrile is reversed, the first use feels very good, continuous After using it twice, the effect is very common, and the effect of the indoxacarb is roughly between the two. PCR Test Reagent Kit Related With COVID-19 PCR reagent,COVID-19,SARS-CoV-2,Delta,Omicron,Influenza A,Influenza B,RSV Shenzhen Uni-medica Technology Co.,Ltd , https://www.unimedicadevice.com
