March solar terms and corresponding pest control
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In March, there were two periods of “fright†and “spring equinoxâ€. Temperatures continued to rise this month, but there were more rainy days and the weather was warmer and colder. In the late days, the temperature gradually stabilized at 10°C, and the effective accumulated temperature of crop growth began to accumulate. 1. Field crops. 1 Rape: Pay attention to clear communication channels to prevent waterlogging. For the good growth, at the end of the fertility, topdressing more than appropriate application of bolting fertilizer, so as not to cause fertilizer damage, on the contrary, should be appropriate increase. Sclerotinia sclerotiorum can be sprayed with 40% saccaride net 2000 times solution or 50% acetaminophen 1000 times solution. Aphids can be sprayed with 10% net 2000 times. 2 Early rice: Select pest-resistant varieties, eliminate old varieties that have been continuously planted for many years, and have reduced or lost resistance; before the convulsions, remove the weeds, falling valleys, and regeneration near the fields, valleys, canals, and rice fields. Seedlings; early spring plow irrigation field, reduce the base number of winter aphids; remove the sheath blight sclerotia, remove and burn the diseased rice straw stacked on the field, field side; disinfection of rice seeds, rice seedbeds, prevention and control of rat field rodent pests. 3 silkworm (pea) beans: do a good drainage ditch, to prevent waterlogging, timely pruning or scaffolding, Qiao Shi Hua Fei Fei, at the same time, appropriate topping, and promote branching. Pest control focuses on aphids, broad bean spot, brown spot, pea rust, brown spot, and peas. At the same time do a good job of field rodent control. 2, vegetables. 1 Shed winter vegetables: pay attention to ventilation and reduce humidity, prevent diseases. Botrytis cinerea is still the main disease of this month. Apart from normal prevention, it can be added to 2,4-D with some gray mold spirit or moldewing spirit. Through the use of flowering, it can effectively reduce the wilting of the petals after the humidity is high. Prone to mildew causes the occurrence of gray mold in the peduncle. 2 greenhouses early spring vegetables: it is best to use nutrition seedlings sowing seedlings, pay attention to seed disinfection before sowing. Watermelon, cucumber, etc. have entered the growth stage of seedlings. In case of sunny days, the temperature in the greenhouse rises rapidly. Before and after noon, proper ventilation and ventilation are possible, and more sunlight is emitted. This can discharge harmful gases and is beneficial to photosynthesis. In addition, attention should be paid to preventing and controlling good pests, such as gray mold, eggplant, early blight, cucumber disease, bacterial blight, and seedlings, etc., but also to prevent freezing damage, wind damage, and make pre-planting hardening. 3 open-field vegetables: open-leaf vegetables and root vegetables have entered the late growth period, when the cabbage butterfly began to lay on the back spawning eggs to hatch larvae harm, should catch the larvae easily killed in the young characteristics, as soon as possible use of pesticide spraying back control . In addition, pest and disease monitoring work should be strengthened, and maintenance of plant protection machinery and preparation of pharmaceuticals should be done. Orchard. 1 citrus: continue to pruning, the end of February should not clear the park in early March clear garden, use 0.5 Baume degrees of lime sulfur or citrus Qingyuan special agent; disease mainly anthrax (optional 50% methyl Topozin WP 500-800 times, or 50% Reperolytic Mildew 1000x), scab (optional 40% polysulfide suspension 300-500x, 50% carbendazim WP 1000 times, 70% thiophanate-methyl WP 800-1000 times); pests are mainly anti-worms, whiteflies, leaf A, 3% acetamiprid can be used 1500 times +90% trichlorfon 800-1000 times Liquid + 2.5% deltamethrin EC 3000-4000 times. 2 Lee: Continue to do a good job trimming, and in the beginning of March budding 2-3 Baume degrees lime sulfur agent to clear the park. Weeding can be manually removed or sprayed with glyphosate. 3 Peach: not pruning to grasp the pruning; Qing Park if you choose to bud scales cracking spray 3 Baume degrees of lime sulfur, can effectively control brown rot, etc.; control of aphids, a little leaf mites can be sprayed 1500 times omethoate. 4, sericulture. Ditch drainage, remove weeds; spring cutting mulberry choose to cut before the budding sprouting, uncut forest mulberry cutting should be as tidy; due to temperature rise, mulberry yard began activities, should use "Sangbao" in the sunny spraying control One per backpack, spray full of mulberry punches and branches; if there is a mulberry infested mulberry, it should be sunny and spray control. 5. Tea gardens: Ditch drainage to prevent waterlogging. After the "convulsions" solar term, the tea trees should pay close attention to the application of bud fertilizer (usually dominated by nitrogen, phosphorus, and potassium compound fertilizers) and apply them around the root system. At the same time, attention should also be paid to the timely cutting of diseased branches and dead branches before sprouting.