Grape bird damage
Bird damage is the enemy of the vineyards. Grapes in greenhouses suffer more than open grapes. Even after bagging in the ears, birds will break the paper bag and eat berries. From early-maturing varieties to late-maturing varieties, 2-3 months before and after the damage, so that grape production and quality have been seriously affected. 1. There are more bird-ridden mountains and fewer plains. The suburbs of Shanghai are mainly white-headed storks (aka Pulsatilla) and sparrows. 2, prevention and control methods covering the net method. The net is surrounded by a shed, and all the sheds and gates are covered so that the bird can be closed and the effect is best. At present, there are two types of anti-bird nets used in production: nylon nets and plastic nets. The former is more expensive, 40-50 yuan per kilogram, and the latter is cheaper, 15-20 yuan per kilogram. Single sheds use 10-15 kilograms per 666.7 meters, the former costs about $500 per 666.7 meters, and the latter costs about $200 per 666.7 meters.
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