Due to more recent rain, the temperature is also lower than usual, orchard diseases are relatively heavy, and pests are relatively light. According to investigation and analysis of fruit tree pests and diseases at Dongyang Champion Fruit Plantation, Dongyang City should pay special attention to prevention and treatment in June. The pests and diseases of fruit trees are: pear gardens have pear wood lice, aphids, early defoliation, branch rot, ring rot, etc.; peaches, plums, plums, apricots have gum disease, scab (scars), brown rot , Botrytis cinerea, Anthracnose, Longhorned beetle, Myzus persicae, Acer japonica, Morinda citrifolia, etc.; Citrus garden mainly includes scab, anthrax, spider mite, aphid, rust wallworm, hornbill, scale insect, butterfly Like larvae, etc.; vineyards are mainly downy mildew, white rot, anthrax, tigers, cattle, leafhoppers, leafhoppers, etc.. The specific prevention and control should grasp the following points:
1. Strengthen the period of prevention and control of agriculture during the Meiyu period, clear up the gully drainage in the garden in time, ensure that there is no overnight water accumulation in the gutters after the rain, and use the compound fertilizer as early as possible in the tree weakening garden, and combine the pest control with multiple sprays of high quality organic leaf fertilizer; strengthen the tree crown In the middle of the past, the dense branches have been cut and the buds have been picked up to control the tip; the pests and branches have been cut off in time; the gardens have been planted during the Meiyu period (but the control of vicious weeds such as bark boards, annual pots, and small flying pots etc. Injury), spraying herbicides and spraying grass immediately after the emergence of Mei.
2, the use of physical and mechanical control: Orchard hanging insect trap lamp or yellow traps, generally every 20 acres or so hanging a trap lamp, can effectively kill the moths, scarabs, Diptera categories of most pests of adults. Kill the larvae (with fresh insects at the entrance) and kill the adult larvae with fine wire or hooks. Pears, grapes, peaches and peaches in the late bagging.
3, the use of low-toxicity pollution-free pesticides to strengthen chemical control: some recent orchards have been harvested, and most of the orchards are fruits near the maturity or early maturation, in the orchard pest control must be reasonable for different harvest period selection of pharmaceuticals. Pear Orchard: Precocious pear orchard sprayed and collected the last time before the beginning of June, and must choose low-toxicity and no residual pesticides. You can use 5% acetamiprid 3000 times and 2.2% methotrexate 3000 times plus 10% difenoconazole water 2000 times plus 80% mancozeb 800 times (or 50% quinoline copper 1500 times) solution; 20% chlorantraniliprole benzamide (Kangda EC) 3,000 times when no bagworm or peach borer occurs. . Vineyard: Add 5% of Dimethylmorphoyl Manganese 600-fold and 10% Difenoconazole 2000-fold (or 1500-fold for 25% Dimethyloxamate or 1500-fold for 50% quinoline-copper) by 69% before picking for 1 month Acetamiprid 3000 times (2.2% Acarbose 3000 times). Peach and Li Garden: After harvesting, the agent for the garden can be 5% acetamiprid 3000 times plus 5.7% cyfluthrin 1500 times 70% thiophanate-methyl 800 times, etc.; the non-harvesting garden can use 10% difenoconazole Aqueous) 2000 times (or 50% quinoline copper 1500 times) plus 5% acetamiprid emulsion 3000 times plus 20% chlorantraniliprole (Kang) 3000 times control. Citrus Orchard: available 15% Dai Ling cream 2000 times plus 12.5% ​​diniconazole ultra-wettable powder 3000 times (or 50% quinoline copper 1500 times) plus 5% acetamiprid 3000 times plus 5.7% cyfluthrin 2000 times.
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