At present, the problem of bird lice in orchards is becoming more and more serious. Bird damage has a serious impact on the quality and yield of apples. It has become a difficult problem to be solved in the current fruit industry.
In July, the common flock birds enter the orchard to feed on fruit until the fruit matures, which lasted for more than 3 months. Even if it is an apple double-leaf paper bag, it is difficult to stop the damage of the bird, and the bird can break the paper bag to feed on the fruit. The coloring period after the apple bag is picked up, the colorful and fragrant fragrance will attract more birds to eat fruit. According to relevant information, for bird-to-fruit damage, the bagged orchard is lighter than the bagged orchard; the sun-facing surface of the fruit is more severe than the shade surface; the coloring is more tolerable than the unbleached, and the better the coloring, the more severe the damage is; Larger victims suffer more than small ones. The culprit and fruit shoulders of the general fruit are seriously affected. The reason why the birds will have a serious impact on the orchard is related to the way they destroy. Birds not only eat apples and cause the quality of the fruit to be reduced and lose their value. At the same time, the apple that is scavenged can easily cause the breeding of fungus and cause white-flowered beetles and wasps. Other pests.
For bird pest control, sticky bird nets were used to prevent birds in some places. This sticky bird net has a great effect on birds, but this method is not desirable. Things are always double-sided, and their advantages have their drawbacks. On the one hand, the birds take in the injured fruit. On the other hand, most of the birds are also important natural enemies of orchards and farmland pests. Birds can eat billions of insects each year. If these insects are allowed to develop, they may destroy our farmland and orchards, destroy our forests, or lead to the use of more pesticides. In one study, birds were found to eat up to 98% of codling moth larvae. Therefore, at the same time as preventing and treating bird pests, we must also pay attention to protecting these birds. It is suggested that the local orchards take one or more of the following bird repellent methods according to their own conditions and local conditions.
1. Set up an anti-bird net. Bird nets are suitable for both large-scale orchards and small-scale orchards. Since birds have poor light color recognition, it is best to use white and red materials, so that birds can clearly see the net and automatically retreat. In regions where hail is frequent, adjusting the size of the grid and combining the flood control net with the anti-bird net is a good thing to do with half the effort. However, the cost of anti-bird nets is higher, and the average fee per mu is increased by about 300 yuan.
2. Artificial bird repellent. Birds in the early morning, noon, and twilight grazing in three periods are more serious. The fruit growers can reach the orchard before this time and drive the birds out of the park in time. However, birds that have been driven out of the park may still return. Therefore, after 15 minutes, it should be checked again and driven 1 time. Generally, each time period should be driven 3-5 times. This method is more labor-intensive and is suitable for orchards that are close to home and have a small planting area.
3. Sound drive birds. Firecrackers, hawks, taps, etc. are recorded by tape recorders and loudly played from time to time. You can also buy professional intelligent voice bird repeller. Sound facilities should be placed at the perimeter of the orchard and at the entrance to the birds to take advantage of wind direction and echoes to increase the effectiveness of sound control facilities.
4. Conveyor bird repellent. Placing dummy or false hawks in the garden or floating balloons with eagles, cats, etc. over the orchard can prevent birds from invading in a short period of time. The bird's vision is very good, and it will be keenly discovered that natural enemies exist, but the bird's visual response is not as strong as the response to the sound. Therefore, it is best to combine the bird repellent bird with the sound bird, which can play a better control effect. At the same time, the use of these two methods should be carried out as soon as possible, generally before the birds start to eat fruit, so that some birds migrate to other places to nest and feed.
5. Reflective film drive birds. Orchard floor covered with reflective film or hanging discs on the tree, the reflected light can make the bird not dare to close to fruit trees in the short term, but also conducive to fruit coloring.
Pesticide Intermediates
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