Application of trans-2-dodecenol serving as cyrtorhinus lividipennis reuter attractant

Abstract

The invention relates to application of trans-2-dodecenol serving as a cyrtorhinus lividipennis reuter attractant. The application method comprises the following steps: preparing trans-2-dodecenol into a mother solution by using absolute ethyl alcohol, dissolving paraffin oil or normal hexane to serve as the cyrtorhinus lividipennis reuter attractant, and applying the attractant to a field at a concentration of 10-10000 ppm. When the concentration is 50 ppm, the attractant rate of male cyrtorhinus lividipennis reuter is 51.72%, and the attractant rate of female cyrtorhinus lividipennis reuter is 44.83%; and when the concentration is 50 ppm, the attractant rate of young cyrtorhinus lividipennis reuter is 31.51%. During a screen-house test, when the concentration is 500 ppm, the attractant rate of the cyrtorhinus lividipennis reuter is 55.64%. During a field test, when the concentration is 1000 ppm, the attractant rate of the young cyrtorhinus lividipennis reuter is 41.98%, and the attractant rate of the adult cyrtorhinus lividipennis reuter is 26.71%. According to the application in the invention, the trans-2-dodecenol can be determined to be applied to the field for attracting the cyrtorhinus lividipennis reuter, control of the natural enemy is enhanced, and the population density of rice grubs is controlled; and the behavior of each insect state can be regulated indoors.

Description

technical field [0001] The invention relates to the application of trans-2-dodecenol as an attractant for the green stink bug. Background technique [0002] Lygus black-shouldered is an important natural enemy insect in the rice field. It mainly feeds on planthoppers and leafhoppers. Feeds on 7.5-10.2 brown planthoppers (Reyes, 1975). Some studies have reported that in plots with higher density of planthoppers, Lygus spp. exhibited an aggregation response, but its predation rate on brown planthoppers had nothing to do with the density of planthoppers. , 20:1, stinkbugs can control planthopper population density without chemical pesticides (Tanangsnakool, 1975). Lygus black-shouldered is sensitive to chemical pesticides, and chemical pesticides such as pymetrozine affect its foraging ability and control of rice pests (Zhang et al., 2015). And for the time being, no safe chemical pesticides and application methods have been found for the green Lygus black-shouldered bug. T...

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Problems solved by technology

And for the time being, no safe chemical pesticides and methods of application have been found for Lygus black-shouldered bugs

Therefore, some researchers have conducted research on the attractant of Lygus black-shouldered stinkbug, mainly the extraction of rice volatiles and the search for compound monomers with attractant effects (Cheng, 2001), but no attractant method that can be applied to the field has been found.

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