â—Technology of prevention and control of Trichogramma
Targets for control: lepidopteran pests such as stem borer, rice leaf roller, rice blast and armyworm
Release method: 10,000 to 14,000 bees per acre, 10 to 14 points, 7 to 8 meters apart, about 1000 tablets per point, and a plastic cup or waterproof paper cup, cup on 1.5 to 1.8 meters of bamboo pole With the mouth facing down, the Trichogram bee egg card is glued to the inside of the cup, and the cup mouth is about 50cm away from the rice.
Early rice release period:
For the first time, during the moth period, the total moth amount was about 150/mu, releasing the red-spotted bee and the red-eye bee. The time is about May 4~5.
The second time, the main defense against rice leaf roller, the bee time is from May 22 to 23.
The third time, heading period, protection function leaves, June 12-13. Late rice release period:
The first time, August 10-11.
The second time, the bee time is August 21st to 22nd. The third time, September 8~9.
The fourth time, September 18-19.
â—Secondary sputum attracting technology
Place 2 traps per acre (configure lure), trap height: the first time the trap is placed 50cm higher than the crop (80cm from the ground), the height of the trap is adjusted once in the rice break period, 20cm higher than the crop, rice The post-ear trap can be 10 cm below the rice canopy. The placement time of the trap is: the trap is placed in the moths during the moth, and after 60 days, the lure is replaced, and the trap is recovered by the rice yellow ripe.
â—Protection of insects and insects
The trap light adopts the principle of fan-sucking, and the insect-catching efficiency is high, which reduces the base of pests by more than 60%. At the same time, because the trap light has no harm to the trapped insects, the natural enemy is returned to the rice field through the pest and natural enemy separation device. Install 1 inch for every 35~40 acres.
â— Rice field natural enemies conservation technology to control rice planthopper
Planting beans and Other plants in areas such as rice fields, fields, and ditches to protect weeds and protect natural enemies in rice fields.
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