1. Turn over the combined fertilization, deepen the tree tray and remove the insects. Earthworms such as cockroaches, beetles, wireworms, and floorworms live in the soil in winter, and pests like peach borers and roundworms prefer to lay eggs in the ground and weeds, and winterize in the form of cockroaches and larvae. By deepening the garden and digging pine trees, in addition to improving the soil structure and protecting the public opinion, it is also possible to destroy the parasitic sites of these pests.
2. Cut and cut flowers before cutting, cutting off dead branches and branches, such as dry rot branches, damaging branches of Tianniu, and diseased branches of ringworm.
3. Scraping, scraping, peeling, rot, spotting, and concentrated destruction are used to reduce the source of bacteria and wintering pests in the bark joints.
4. The use of white painted branches can not only effectively prevent frost damage of fruit trees in winter, but also endanger the cold of livestock, and it can also play a good role in prevention and control of insect pests that remain on branches. 72% water, 22% quicklime, 3% lime sulfur and 3% salt were mixed to make a whitening agent. The concentration of the whitening agent should be applied to the tree trunk without advancing downstream and not forming a mass. Lime must be melted, otherwise it will absorb water and heat to burn the trunk. The application of white after shave can effectively kill the pests of fruiting moths, apple caterpillars, pear caterpillars, red spiders, etc. that are hidden in branches and rough skins, cracks or cracks.
5. shovel spatula remover. In the middle and early March, the orchard sprays 3 to 5 degrees Baume degree lime sulfur, which can effectively eradicate wintering germs, scale insects, and mites. Such as the apple tree before spring sprouting prevention powdery mildew, rot, scale insects and leafhoppers, it is appropriate to use Baume 5 fluid; germination after flowering to Baume 0.3 ~ 0.5 degree solution; summer suitable Baume 0.05 ~ 0.1 degree liquid.
6. Spraying protective fungicides. If the occurrence of pear scab is inhibited, a 1:2:200 Bordeaux mixture can be sprayed again during the pear insemination period to prevent the occurrence of pear, apple ringworm, and apple anthracnose; it can be avoided during the growing season. Use lime multi-type 240- to 280-fold Bordeaux mixture.
7. Resistance to early-stage overwintering habits of early-stage defoliating bacteria, red spider mites, peach borerworms, etc. can be covered by mulch in early April to prevent germs and insects from growing on trees and to eliminate unearthed larvae and emerged adults. In the high-risk area of ​​the Jujube tree weevil and marching in early March, mounds were piled under the trees, digging the isolation ditch, or binding the unrolled plastic to the trunk to prevent pests from getting on the tree and collecting the killings every morning.
8. Brushing with a bristle brush or a thin wire brush to brush off severe stems from scale insects, eliminate overwintering nymphs, oocysts, etc. and reduce the number of insects.
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