Wheat Management Grasps Key Prevention Midges
Wheat midge is a devastating pest on wheat, which occurs once a year. The larvae use larvae to lurk in the glume to absorb granules of granules or damage flower organs, causing pods and empty shells, which seriously affect the yield and quality of wheat. Wheat midge has the characteristics of small worm body, strong concealment and great harm. In order to effectively control its hazards, it is critical to accurately grasp the two critical periods of prevention and control.
The prevention and treatment of flood season control is expected to be appropriate in the middle and late April (wheat booting stage), and each plot has two or more plots of insects, and timely chemical control. Per acre with 5% chlorpyrifos granules 1.5 kg or 3% phoxim granules 3 kg, mix fine soil 20-25 kg can also be used per acre 40% chlorpyrifos EC or 50% phoxim EC 250-300 grams, mixed 20-25 kg of fine sand, evenly spread on the surface. Watering immediately after application can increase control efficiency.
Adult stage control is expected at the beginning of May (wheat heading to flowering period), which is suitable for adult control. Hand to open the ridge of the wheat ridge to see a field of more than 2 adults, timely spray control. Spray with 10% imidacloprid 1000-fold, 50% chlorpyrifos 1500-fold, or 4.5% beta-cypermethrin 1000-1500 times and spray control before 11am or after 4pm. Spraying can add carbendazim, triadimefon, diniconazole, potassium dihydrogen phosphate and other mixed spray, while the control of scab, powdery mildew, rust and other diseases and prevent premature aging.
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