Rice And Pesticides On Oulema Oryzae Kuway Control Technology Research

Rice (Oryza sitava L.) is one of the most important foodstuffs in the world. In Liupanshui of Guizhou Province the planting area of perennial rice is 22,000 hm~2. In rice production, plant diseases and insect pests is one of the main limiting factor of the rice output and qualit. Planting resistant varieties of better quality and using highly efficient, low toxic, low residue, economical and environmentally friendly chemical to control the rice pests and diseases can effectively prevent and reduce the loss.Oulema oryzae Kuwayma ( Coleoptera: Chrysomelidae),adults and larva can eat the mesophyll of the leaves, leaving transparent skin, forming white stripes.This study was the resistance test of 20 rice varieties and the control effect test of 10 kinds of medicine to rice negative mud pests. The 11 better resistant rice varieties, which had significantly resistant effect to the negative mud pest, was selected for agricultural production. In the test of 10 kinds of efficient low-toxic medicines to control the rice negative mud pest, 5 kinds of the medicines had better effect, which were all exceed 90%.Only earnestly implementing the "prevention first, the integrated control"plant protection guideline and "classified guidance, area management, scientific medication, demonstrations lead, to make out the emergency prevention, to ensure rice production security" strategy, basing on the agricultural, physical and biological control, combining with the application of biological agents and high efficient, low toxic, low-residue, economical, safe and environmentally friendly pesticides, rationally using the suitable technologies, the plant diseases and insect pests can be effectively control, thereby reduce or avoid the loss.