Development Integration Application Technology of Spinosad to Control Stored Grain Pests
Spinosad is a green,safety and efficient protection agent for grain storage.In view of the bottleneck problem of the surface application of grain pile in national grain reserve,the automatic surface layer application e-quipment for the surface application of grain pile with spinosad and other grain storage protective agent powder was developed,which solved the problems of uneven application,inconvenient use and low application efficiency of the protective agent in the surface of large warehouse and reduced the use cost of the agent.The developed equipment can spray powder at a depth of 30 cm below the grain surface,and complete the grid application of grain surface in a 1000-ton rice or wheat warehouse within 3～4 h.Further study confirmed that 0.5％ spinosad powder used at an effective dose of 1.0 mg/kg or above has a good effect on control the main storage pests,the adult and larva of Rice weevil,Rhyzopertha dominica and Tribolium castaneum.The combined application and popularization of spinosad con-trol technology,phosphine fumigation technology and low temperature grain storage technology have been carried out in the medium temperature,high temperature and high humidity grain storage area in China.The results indicated that spinosad powder had a certain inhibitory effect on the occurrence time and quantity of the stored grain pests such as Rice weevil,Rhyzopertha dominica and Tribolium castaneum and so on,which could effectively control the occur-rence of the pests and had a good continuous control effect on the pests.According to the effective dose of 1 mg/kg surface mixed grain with aluminum phosphide fumigation and air temperature control,the effective protection time of basically insect-free rice was close to 2 years,the number of fumigations was reduced during the protection period,and the quality of stored grain was basically not affected.Combining with fumigation technology and low temperature grain storage technology,spinosad could prolong the pest control effect in basically insect-free warehouse.
万方数据
维普
