Trans-synergistic sustained-release gel for holotrichia parallela motschulsky and preparation and validation of gel

Abstract

The invention relates to trans-synergistic sustained-release gel for holotrichia parallela motschulsky. The gel is prepared from sex pheromones, a synergist, a sustained-release carrier, a sustained-release carrier auxiliary agent, a solubilizer and a wetting agent, wherein the sex pheromones are methyl L-isoleucinate and (R)-(-)-linalool, the synergist is trans-2-hexenyl acetate, the sustained-release carrier is sodium carboxymethyl cellulose, the sustained-release carrier auxiliary agent is hydroxypropyl methylcellulose, the solubilizer is polyethylene glycol, and the wetting agent is anhydrous ethanol. The invention further provides the trans-synergistic sustained-release gel for holotrichia parallela motschulsky and a verification test method of the synergistic sustained-release gel. According to the trans-synergistic sustained-release gel for holotrichia parallela motschulsky, through the reasonable selection on an inducer, the cooperation of the dosage adjustment of all the components, the optimization of the preparation process and other means, the insect induction and sustained-release effects of a preparation are effectively improved, and the gel has remarkable economic and ecological significance for large-scale production.

Description

technical field [0001] The present invention relates to the field of biological preparations, in particular to a trans-synergistic slow-release gel of the black beetle beetle which utilizes trans-2-hexenyl acetate to enhance the effect of attracting insects and improve the release effect through a unique preparation process and its Preparation method and effect verification experiment. Background technique [0002] Black beetle is a pest that seriously harms peanut crops, especially its larva grub, which can reduce peanut production by 10-20%, and in severe cases, it can reduce production by 50% or even fail to harvest, causing huge economic losses to the peanut industry. Abandoning the polluted environment insecticide method of chemical pesticides and the high physical cost of insect trap lamps, the current biological pesticide method using sex pheromones as insect attractants has become the main research direction of pollution-free pest control. The relevant Shandong Peanu...

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Problems solved by technology

[0002] Black beetle is a pest that seriously harms peanut crops, especially its larva grub, which can reduce peanut production by 10-20%, and severe cases can reduce production by 50% or even fail to harvest, causing huge economic losses to the peanut industry

Abandoning the polluted environment insecticide method of chemical pesticides and the high physical cost of insect trap lamps, the current biological pesticide method using sex pheromones as insect attractants has become the main research direction of pollution-free pest control. The relevant Shandong Peanut Research Institute Studies have shown that using the sex pheromone of scarab beetle insects, pheromone quick-release cotton lure preparations and paste-like insect lure slow-release agents have been developed, but further research has found that adding an appropriate amount of trans-2-hexenyl acetate can make the lure The synergistic rate of the insect effect can reach 150% to 200% of the original attractant amount [n], but the addition of this ingredient cannot continue to use the original preparation form of the scarab insect sex pheromone paste attractant [m], so looking for Sustained-release dosage forms and processes capable of industrial production that enable pheromones to exert better insect-attracting effects have become the needs of new biopesticide preparations

Among the preparation patents previously applied by our firm, represented by Chinese invention patents CN103828808A and CN106818838A, although a certain degree of progress has been made in long-term environmental protection and production promotion, the slow-release effect and insect-attracting effect are superior to those of the inducer. The proportion of auxiliary materials and the flaws in the process, the long-term uniform release and the increase in the number of traps have not yet achieved the desired effect

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