Hexaflumuron complex formula for preventing and controlling lasioderma serricorne of redried strip tobacco and prevention and control method thereof

Abstract

The invention discloses a hexaflumuron complex formula for preventing and controlling lasioderma serricorne of redried strip tobacco and a prevention and control method thereof. The formula consists of the following components in percentage by mass: 10 to 20 percent of hexaflumuron, 1 to 10 percent of fenoxycarb, 0.5 to 2.5 percent of tween-20, 0.1 to 0.8 percent of sorbic acid, 2 to 5 percent of glycerol, 0.5 to 2.5 percent of white carbon black, 0.05 to 0.3 percent of xanthan gum, 0.2 to 0.6 percent of methyl silicone oil, and the balance of water. The method comprises the following steps of: beating and drying tobacco leaves in the process of redrying; diluting the hexaflumuron complex formula product for preventing and controlling the lasioderma serricorne of the redried strip tobacco by water before packing; and uniformly spraying the diluted hexaflumuron complex formula product onto tobacco leaves, wherein the spraying amount accounts for 3 to 5 permillage of the total weight of the tobacco leaves, and the concentration of hexaflumuron effective constituents contained in the tobacco leaves is between 5 to 30 ppm. According to the prevention and control method, 70,816 loads of redried strip tobacco leaves are processed, pests such as the lasioderma serricorne and the like are not found on the processed tobacco leaves during storage, the phenomenon of pest damage can be prevented in the process of storing the tobacco leaves, and the sensory quality of the prevented and controlled tobacco leaves is not changed.

Description

Technical field: [0001] The invention relates to a pesticide for killing tobacco A and a method for preventing and controlling tobacco A, in particular to a compound formula of hexaflumuron for preventing and curing red-cured tobacco A and the prevention and control method thereof. Background technique: [0002] my country is a big tobacco-producing country and a big tobacco-consuming country. Tobacco leaf storage pests cause huge losses to tobacco companies every year. After the tobacco leaves are eaten by binworms, the unit weight is reduced, the broken loss rate is increased, the quality is reduced, the leaves are fragmented, and the silk yield is low. According to Gong Xinwen et al.'s (1990) investigation and research on the loss of stored tobacco pests, it is believed that the loss rate is 1% to 5%. According to Song Jizhen's (1995) survey, the loss rate of tobacco leaves due to the harm of tobacco storage pests is about 1.64%. The total loss of tobacco storage in my c...

AI Technical Summary

Problems solved by technology

Aluminum phosphide tablets are stable when dry. After application, they react with moisture in the air to produce phosphine poisonous gas, which penetrates into tobacco leaves to kill storage pests. However, there are four obvious disadvantages in phosphine insecticide Disadvantages: First, the current tobacco leaves have been processed into a box of about 200kg of laminar tobacco before alcoholization, and the boxes are independent and sealed from each other. It is difficult for phosphine gas to fully contact the tobacco leaves through natural diffusion, so there is insecticide The second is that phosphine is a highly toxic substance. After contacting with tobacco leaves, the phosphine remaining in tobacco leaves will cause a certain degree of damage to the body of smokers.

In addition, the long-term use of phosphine in large quantities also seriously pollutes the warehouse and the surrounding environment, which is likely to cause poisoning of on-site operators; third, phosphine is a flammable, explosive and highly dangerous product that is easy to cause fires. Fire accidents caused by phosphine are in Occurs in cigarette factories from time to time; Fourth, phosphine poisonous gas can cause corrosion to various electrical appliances and equipment, and also increase indirect losses of cigarette factories during fumigation and insecticide