A method for preparing stephanoporate starch bark beetle attractant slow release ball granule preparion

Abstract

The invention relates to a preparing method for slow release pill grain agent of porous farina bristletail attractant. The method includes the steps of: (1) making the porous farina adsorbing bristletail attractant into different sized pill grains; (2) putting the prepared pill grains into high molecular compound solution of which the weight percentage is 5-10 percent and which can form polymer membrane, and soaking the pill grains in the cross linking agent saturated solution for 0-12 minutes to ensure that the polymer membrane is solidified fully, then taking the grains out for airing naturally. The method is easy to produce with low cost, and is applicable for industrially producing the bristletail attractant slow release agent which can effectively control the release speed.

Description

technical field [0001] The invention belongs to the field of preparation of sustained-release pellet preparations, in particular to the preparation of sustained-release pellet preparations of porous starch bark beetle attractants. Background technique [0002] Bark beetle has become one of the most harmful forest pests in forest ecosystems worldwide. In recent years, with the sharp increase in the amount of imported timber in my country, foreign bark beetles have also entered my country. In order to prevent the harm caused by bark beetles, on the one hand, the staff adopt methods of trapping and killing bark beetles in the forest; on the other hand, they improve the quarantine effect of bark beetles to prevent foreign bark beetles from entering. [0003] At present, trapping and killing bark beetles in forests mostly adopt methods such as trap release, tree trunk spraying and aircraft spraying to release target bark beetle anti-aggregation pheromones, aggregation pheromone a...

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Problems solved by technology

[0003] At present, trapping and killing bark beetles in forests mostly adopt methods such as trap release, tree trunk spraying and aircraft spraying to release target bark beetle anti-aggregation pheromones, aggregation pheromone analogs and aggregation pheromone inhibitors in the forest ecosystem, but due to Such substances are extremely volatile, which increases the workload of spraying during use; in addition, attractant samples with different release rates are required in bark beetle trapping and killing occasions where forest and wood quarantine are different, but currently there is no attractant sample that can meet the above two conditions. Slow-release bark beetle attractant commodity under the conditions of use in various occasions

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