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How to control the black locust grain moth? Detailed control methods
Control methods for the black locust grain moth: 1. During the peak emergence period of adults, spray 80% dichlorvos emulsifiable concentrate, or 4.5% beta-cypermethrin emulsifiable concentrate, or 2.5% deltamethrin at a 2000- to 4000-fold dilution. 2. During the larval damage period, apply a 1:30 dilution of 80% dichlorvos and kerosene, or a 1:20 dilution of diesel oil, brushing it onto the infested patches.
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How to control the black locust geometer moth? A full breakdown of practical methods
Control methods for the black locust geometer moth: 1. Manually dig the pupae out of the soil and feed them to poultry. 2. During the adult emergence period, pile sand at the base of the trunk or tie a 5 to 7 cm wide plastic film band to prevent the wingless moths from climbing the tree. 3. During the young larval stage, spray a 3000-fold dilution of 20% diflubenzuron, or a 2000-fold dilution of 50% phoxim emulsifiable concentrate or 20% fenvalerate insecticide emulsifiable concentrate. 4. Use light traps to kill the adults.
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What are the control methods for the black-marked looper moth on black locust?
Control methods for the black-marked looper moth on black locust: 1. Use light traps to kill adult moths. 2. Protect and make use of natural enemies, such as braconid wasps. 3. During the outbreak period, spray insecticides such as 50% fenitrothion emulsifiable concentrate at 1000 to 1500 times dilution, 2.5% deltamethrin emulsifiable concentrate at 2000 to 3000 times dilution, or 90% trichlorfon crystal at 800 to 2000 times dilution.
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How to control black locust aphids? Master these methods for good results
Control methods for black locust aphids: 1. Protect natural enemies such as ladybugs, hoverflies, green lacewings and aphid parasitoid wasps. 2. Strengthen pest monitoring and forecasting. When the number of winged aphids suddenly increases and the rate of aphid-infested plants reaches 20% to 30%, spray pesticide promptly. If the ratio of ladybugs to aphids reaches 1 to 100, and the aphid population shows a declining trend, stop spraying pesticide for control and protect natural enemies. 3. During the peak outbreak period, spray 50% pirimicarb wettable powder at 1500 times dilution, 10% imidacloprid wettable powder at 1500 times dilution, or spray EB-82 aphid-killing fungus at 300 times dilution
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What are the control methods for the black locust seed moth?
Methods for controlling the black locust seed moth: 1. After leaf fall, clear away the remaining seed pods to destroy the overwintering larvae inside them. 2. During the peak occurrence period, spray 50% fenitrothion emulsifiable concentrate at a dilution of 1000 to 1500 times, or 40% dimethoate emulsifiable concentrate at 800 to 1000 times. 3. Protect and use natural enemies. 4. Before sowing, select seeds with 20% salt water, scoop out the floating insect-infested seeds and burn them.
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What are the control methods for the black locust seed chalcid?
Methods for controlling the black locust seed chalcid: 1. Strict seed quarantine; it is strictly forbidden to transport seeds carrying the pest elsewhere. 2. Strengthen the management of mother trees; when pests are found, control them with chemical agents. During the adult emergence period, fumigate with 741 dichlorvos tube-inserted smoke agent. Spray with 80% dichlorvos emulsifiable concentrate at 800 to 1000 times dilution, 40% dimethoate emulsifiable concentrate at 1000 to 1500 times dilution, or 20% fenvalerate emulsifiable concentrate at 1500 times dilution. 3. Soaking seeds in hot water (60°C) for 15 minutes can kill the larvae inside the seeds, or use 10% to 20% salt water to select seeds.
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Detailed Introduction to the Premium Black Upland Rice Variety 144
144 black upland rice is a variety developed by crossing black rice (paddy rice) with white rice upland rice, subjecting the cross to radiation treatment, and then carrying out directed selection under upland cultivation conditions. This variety has a plant height of 100 cm, with thick and tough stems, medium-length and relatively wide leaves that are held upright, glossy green, and a compact plant type. The main panicle is 25 cm long, with an average of 274.2 grains per panicle, reaching as many as 422 grains, and a 1000-grain weight of 26-72 g. The grains are oval-shaped, the rice is jet black, and the endosperm is entirely black. Black rice contains various proteins and trace elements needed by the human body, and eating it regularly is beneficial to human health.
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How to identify and control black spot on roses
This disease occurs commonly and causes severe damage, leading to massive leaf drop in roses and huge losses. The pathogen is a fungus of the genus Actinonema in the subphylum Deuteromycotina. 1. Symptom identification: In the early stage of the disease, brown radial spots appear on the leaf surface, which then gradually expand into circular or nearly circular spots with a diameter of 4-12 mm; in severe cases, the lower leaves drop early, and the disease gradually spreads upward until the upper leaves also fall off completely. Rainy and humid conditions are the main requirements for spore production; when there are water droplets on the leaf surface and the temperature is suitable, infection can occur in 6-10 hours, and symptoms appear in 3-6 days
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What to Do When Roses Get Black Spot? Detailed Guide to Prevention and Control Techniques
Rose black spot occurs in many places. The disease harms roses, causing leaves to turn yellow and drop early, triggering a second flush of leaves in the same year, weakening the plant's growth vigor and reducing cut flower yields. I. Symptoms Rose black spot mainly infects leaves, but also infects petioles, veins, young shoots and other parts. In the early stage of the disease, small brown spots appear on the upper surface of the leaves, gradually expanding into circular, nearly circular or irregular lesions. The lesions are 2-12 mm in diameter, blackish-purple, with radiating edges. In the later stage, the central tissue of the lesions turns grayish-white, scattered with many black
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What are the control methods for magnolia black spot?
(1) Strengthen nursery management, boost tree vigor, and improve disease resistance. Choose loose, fertile soil with good drainage, apply fully decomposed cake fertilizer, loosen the soil and water in time, and in the north pay attention to preventing frost damage. (2) Promptly clear fallen leaves from the ground, prune severely diseased leaves from the trees, and bury them deeply in a centralized manner. (3) In the early stage of the disease, spray 1:1:160 Bordeaux mixture or 0.3-0.5Be lime sulfur mixture, 77% Kocide wettable powder, 30% copper oxychloride suspension concentrate, 25% copper-ammonia complex aqueous solution, 50% Tuzet wettable powder 6
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