The invention belongs to the field of biological prevention and control of agricultural and
forestry pests, and relates to a method for improving development and
reproduction of cotesia abrotanoides by using
metformin hydrochloride, which comprises the following steps: feeding adult cotesia abrotanoides populations with a honey
aqueous solution containing
metformin hydrochloride as supplementary
nutrition, and breeding cotesia abrotanoides by using
rice moth larvae impregnated with the
metformin hydrochloride solution as hosts, according to the
population number of the cotesia nilaparis, the soaked
rice moth larvae in a fixed proportion are provided, the
adult stage of the cotesia nilaparis is prolonged, and the
reproductive capacity of the cotesia nilaparis is improved. According to the method, the rice moths are selected as intermediate hosts, the
rice moth dipping treatment, adult period
nutrition improvement and other dual measures are adopted, the adult period of the cotesia nitenella is prolonged, the improvement of the
reproductive capacity of the cotesia nitenella is promoted, and the method has a good application prospect for promoting the propagation production quantification, planning and intensification of the cotesia nitenella. The invention provides a parasitic wasp source for releasing a large amount of cotesia brasiliensis to prevent and control palm pests, and plays a positive role in protecting the planting safety of the palm
plant industry.