NGHIÊN CỨU MỘT SỐ BIỆN PHÁP KỸ THUẬT PHÒNG TRỪ MỌT ĐỤC QUẢ CÀ PHÊ CHÈ TẠI VÙNG TÂY BẮC

In Son La area is now almost coffee growers did not apply all the technical measures for planting and care, especially in technical methods of insect control. To address that many managers and farmers concerned about the possibility arises of pests affecting the income of coffee growers. This report introduces some initial results of the investigation, study some technical measures to prevent termites coffee fruit (Stéphanoderes hampei Ferr). Through survey research shows that most of the coffee growing areas in Son La weevil damage were heavy losses from July to October. The thinning out 30 to 40% lower branches that yield differences, post-harvest fruit trees and remnants of the lowest harvest was 5.8%. Thu ignore, including the ripe fruit, dried fruit and brown on the plant, underground and then destroyed by a destroy the source of damage to fruit next season. Preventive medicine in the period when chemistry results 8 weeks onwards, the restrictions arising developed a fruit. Effect of chemicals VeTemex20EC 0.15%, Suprathion 0.15% 40EC prevent termite spray fruit with the highest effective eradication of 15 and 45 days after injection.