Pest control in the buds of fruit trees

Since last winter, the low temperature lasted for a long time, the amount of snowfall was relatively large, and the recent temperature rises rapidly. The air humidity and soil moisture are relatively large, and it is easy to cause a variety of pests and diseases. Therefore, we must attach great importance to the occurrence and damage of various pests and diseases this year. Careful prevention and treatment must not be taken lightly. According to the characteristics of pests occurring in the area in early spring, the following prevention and control programs are proposed.

1, remove the fallen leaves of the orchard; scrape the old skin, apple rot rot disease and concentrated burn; combine fruit trees cut, cut off the apple powdery mildew, tumor damage and other pest branches, and cut off the orchard edge cypress Bacteria (rust spores). Doing this work well can prevent and reduce sources of overwintering pests such as apple scab, apple rust, apple tree rot, apple early defoliation, pear malipede, leaf miner moths, leaf roller moths, and mites.

2, apples, pears, peaches, cherries and other orchards spraying 3 - 5 Baume degrees lime sulfur, spray time depends on the various tree species and: apples, pears in the flower buds during the expansion of spraying, peach in the flower buds slightly dew-red During the period, the cherry was sprayed during the period of flower buds.

3, the apple tree rot disease, scrape the disease after the smear Kang Shui agent, but also available rot rule, fruit rot Kang, governance rot and so on. For old-aged orchards with apple tree rot disease, the whole garden can be sprayed with Parkinson's net, Guokangbao or fruit fungus net.

4. In the apple orchard, orchard or cherry orchard where the scale insects are infested, a diesel emulsion or mechanical oil emulsion with 5% oil content may be sprayed before germination according to the phenological period of each species. If the spraying time is too late, it is likely to cause injury. .

5. For an orchard affected by the small apple pudding, apply a 50-fold mixture of dichlorvos and the appropriate amount of kerosene to kill the larvae at the site of the damage.

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