As the apple tree enters the fruit setting period, the consumption of nutrients is further increased. In addition, the photosynthetic capacity of the leaves is limited, the tree resistance is reduced, and powdery mildew, early defoliation, anthracnose, and ringworm disease and other pathogens will take advantage of the disease. The focus of prevention and control is to control the initial infection source of pathogens. Insect pests such as leafhoppers, aphids, golden-lined moths, apple leaf roller moths, and apple aphid pests have already entered the cricket infestation stage. Peach borerworms and others have been unearthed one after another, and pupa emerged. Friends of fruit farmers should determine the focus of prevention and control according to the number of insect pests. Treat other pests.
According to the forecast, this year pests should be dominated by spiraea, gold-grained silk moths, hawthorn leafhoppers, apple leaf roller moths, apple millet cockroaches, etc.; diseases should be early defoliation, rotenus rot, powdery mildew, Mycotic heart disease is the key to prevention and control. Individual regions should also pay attention to the prevention and treatment of apple scab, rust, round spot disease and root rot. Specific prevention measures are as follows:
In terms of disease prevention, apple blossoms fall behind and spray 42% Fululu suspension concentrate or 43% Dashengfu suspension concentrate 800 times once every 10-15 days depending on the weather to prevent and treat early defoliation, ringworm, anthrax , Orchard with lobular disease sprayed 65% Pudejin WP 600-800 times. In order to control the spread of pathogens on deciduous and stagnant fruits, an orchard orchard should be sprayed on the ground with 600-800 times the amount of Burkholderia. In the severe orchard that occurred in the last year, the surface was treated with 0.5 Baume of lime sulfur. Combination of thinning and thinning of fruit, careful removal of diseased shoots, diseased leaves and diseased fruit, and timely spraying of 25% of Guinness EC 6000-7500 times or of 70% Nano WP 1500-1500 times, can prevent and control black stars Disease, powdery mildew, rust. An orchard with round-rooted root rot occurs, depending on the degree of tree vigor and the severity of the disease, thinning the fruit and dressing outside the root, and applying aerial rooting or pharmacy irrigation. Can use 25% of Guinness EC 6000-8000 times + amino acid 600-800 times liquid mixture root irrigation treatment.
In the prevention and control of pests, the degree of occurrence of Spirulina edulis and apple amaranth was selected using 20% ​​Anmide special emulsion or 20% of good Nian Dong Emulsion 1000-1500 times, or 40% Anmol or 40% good labor Emulsion. 1500 times liquid spray control. If there are a large number of natural enemies, such as ladybugs, grasshoppers, and predators, use 20% Anmette Extra Cream or 20% of a good 5-10% solution of winter milk to dry. The orchards of the golden-lined moth, spiny leaf miner, and apple leaf roller moth can be baited with sex attractants and sprayed with 40% Guolong suspension agent 16,000 times before and after flowering. A serious orchard occurred in the previous year. The first time the concentration should be increased (12,000-1.4 million fluids) to eliminate it completely. For the prevention of hawthorn leafhoppers, the whole park can spray 57% EC 2000-3000 times before the inflorescence separation period and summer harvest. Peach peach borer can be killed by sex attractants. In addition, according to the habit of peach fruitworms overwintering in the soil under the tree disk, in the early stage of their excavation, 40% of Anmulole EC or 40% of good labor EC may be sprayed to treat the ground. When the tree's egg rate reaches 1%-1.5%, it can be sprayed on the tree to prevent and cure. The medicine can be used for 1200 times liquid peach essence or Tao Xiaoqing EC.
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