Do a good job of prevention and control of pests at the ear stage of rice

First, what happened

1. The recent weather conditions in the ear of the panicle blast are favorable to the occurrence of panicle blast in rice, and part of the susceptible varieties have been found in the panicle pods and branches. The meteorological department forecasted that most of the rainy weather in the middle and early September would be a major risk for the late rice and susceptible varieties in our district. In order to consolidate the results of previous prevention and control, in the near future, we must actively prevent the emergence of late-maturing rice and susceptible varieties such as panicle-branch, branch stems, and grain pods.

2. The number of moths and eggs in the field of six leafy leafworm (4) generation rice leafrollers was relatively high. As of the 9/6 system field, there were 2980 acres of moths, 5800 and 7400 heads in the advanced area of ​​Yanzhuang, and Yuzhuanghuazhuang points. 3930 heads; The recent survey of bridges, Shengao, and Luotang fields yielded an average of 108.3 (0-400) grains.

3. The larvae of this year's second-generation S. japonicum adult tails were longer, 8/the end-9/6 sex lures accumulated lure moths, and the average of 112 points/points in Xinzhuang, Yi, Huazhuang and Luotang were 4 points. 2 times the same period last year (59 of the same period last year).

Second, prevention and control technology

1. Control targets: Indications: ear blast, rice leaf roller, big borer, and stem borer, check: rice planthoppers, rice leafhoppers.

2, prevention and treatment time: Grab the sunny day, grab the rain stop gap assault drug control, a large area in September 11-14.

3, prevention formula:

Prevention of ear blast: Mu with 30% tricyclazole suspension 70 grams, or 40% rice bran 100 grams, green control zone with 2% kasugamycin (import) 100 grams.

Prevention of rice leaf roller borer, stem borer, and large borer: 50 g of 10% avermectin hydrazide suspension for mu (100 to 150 ml of insecticide bifida for aphid recurrence area), or 35 % Chlorantraniliprole water dispersible granules (YU Fu Kuan) 6 grams, or 9080 suspension 40 grams, or rice leaching 45 grams, the green control zone with Bacillus stearothermophilus 100 ml.

Prevention of rice planthoppers and rice leafhoppers: Acetate 25% Pymetrozine Suspension 10g plus 50% Miravan (Anisidine) 5g, or 50% Pyridoxetine 30-45g, Green Control The area uses 100 grams of 1% matrine.

Prevention of bacterial base rot: Acres with 20% Bisheng 100 grams, or 6% thiazolyl (exemplary) 100 grams.

Anti-reverse production increase agent: Break, full ear acres with more than 30 grams of ear (heading neat, precocious, increase grain, gain weight).

According to the occurrence of pests in the field, one of the above formulas was selected to spray mist on 20-30 kg of water.

Third, pay attention to matters

1, spikes should be appropriate to prevent, in case of more rainy days to increase the number of prevention.

2, pay attention to the rotation of medication, and use a sufficient amount of water, spraying should be uniform to prevent excessive concentration of drug injury. Avoid even spray of dew in the morning; treat in case of rain within 4 hours after treatment.

3, to avoid the use of drugs during the flowering time, to prevent flowers but not real.

4. Pay attention to the safety interval of pesticides, and disable highly toxic, high residue and banned pesticides; do not discard packing wastes, and pay attention to the safety of aquatic animals, bees, sericulture and paddy fields.

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