Rice cultivation: how to control diseases and insect pests in the middle and later stages of rice?

How to control diseases and insect pests in the middle and later stage of rice? Please introduce in detail the methods for the control of rice diseases and insect pests in the middle and later stages, such as rice blast, bacterial leaf blight, stem borer and planthopper, which can be controlled with reference to the following methods: (1) the control of rice blast is at the jointing and tillering stage of rice, when the central diseased plant appears in the field (early July), 40% Yidaojing 200ml or Fuji 1 EC 200ml, 50 kg water spray is used to control leaf blast 1-2 times. In rice break heading 5% (early August) and full heading stage (mid-August), 30 grams of 75% tricyclazole wettable powder or 40% thiocyclazole 200 grams per mu were sprayed with 50 kg of water to control panicle blast. (2) the prevention and control of rice bacterial blight at the initial stage of the disease, "10 million units of agricultural streptomycin" 20g/ mu, "25% leaf kuning" 150-200g/ mu or "10% Kuikuning" 60g/ mu were selected; 50kg spray with water. (3) during the rice jointing-heading and flowering stage (July 10-August 10), the field population density of rice planthopper reached 500ml / 100 clumps, and 50 kg of water was sprayed with "25% pyrazidone" 20-25ml, "25% cypermethrin" 20ml 30g or "30% cypermethrin" 40ml per mu. (4) Rice borer is commonly known as "drill worm" and "spiralis". When 5% of the rice is heading, the mu is sprayed with 50 grams of 98% Badan powder or 48% chlorpyrifos 100 grams with water. Click to get more rice planting techniques click to get more food crop planting techniques