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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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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-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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What are the control methods for the Privet Hawk Moth (Clanis bilineata)?
Control methods for the Privet Hawk Moth (Clanis bilineata): 1. Use light traps to kill adult moths. 2. After larvae enter the soil or before adults emerge, dig the soil as appropriate to destroy larvae and pupae. Or spray 25% phoxim on the ground to poison the pupae in the soil. Or apply drip irrigation. Before applying the pesticide, first clear weeds, dead branches and fallen leaves from the ground. After applying the pesticide, mix the soil evenly with a hoe to improve the control effect. 3. During the larval occurrence period, spray a 500-fold dilution of Bt emulsion containing more than 100 billion spores per milliliter, or a 1000-fold dilution of 90% trichlorfon crystal.
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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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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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A Detailed Guide to Oleander Propagation Methods and Key Management Points
Propagation Methods Oleander can be propagated by three methods: cuttings, division, and layering, among which cuttings are the most commonly used propagation method. Cuttings can be taken in both spring and summer. If, before planting, the base of the cutting is soaked in clear water for 7 to 10 days, keeping the soaking water fresh, roots can form earlier after planting and the survival rate increases. The specific method is: take 1- to 2-year-old branches cut in spring, cut them into stem segments 15 cm to 20 cm long, tie about 20 of them into a bundle, and soak them in clear water with the submerged depth being 1/3 of the stem segment, changing the water at the same temperature once every 1 to 2 days, keeping the temperature at 20°C to
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Symptom Characteristics, Causes, and Control Methods of Oleander Witches' Broom
The oleander witches' broom pathogen mainly attacks oleander branches. The disease initially occurs mostly on individual branches, showing mass sprouting of axillary buds and adventitious buds, with many slender weak branchlets growing in clusters, stagnation of main shoot growth, shortened internodes of branchlets, and smaller leaves with indistinct mosaic patterns. Infected branchlets can produce further branchlets, and the bases of newly sprouted branchlets are swollen, pale red, and often clustered in groups. The branchlets become increasingly slender and weak, and the leaves become increasingly smaller, resembling a bird's nest in appearance, forming the typical witches' broom symptom. Most affected branchlets stand upright, and the branches have tumor-like growths. The cortex rots and peels off in strips, forming cankers,
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Preliminary Study on Propagation Methods and Technical Key Points of Taxus wallichiana var. mairei
Taxus wallichiana var. mairei, also known as beautiful yew, shan gongzi, and hailuo pine, is a rare evergreen tree under first-class national protection. It has a graceful form, with a purplish-red, straight trunk, and when the seeds mature they turn red, with a vividly colorful aril. It has strong regional adaptability and can be planted anywhere south of Shaanxi. This tree species prefers a humid and cool climate environment, and is suitable for growing in moist, loose, well-drained acidic to slightly acidic soil. It is a semi-shade-tolerant species; seedlings tolerate shade and grow slowly, with growth increasing after 3 years. Because it also tolerates poor soil and has strong resistance to pests and diseases, it is the preferred species for reforestation on mountain land in East China after pine species
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Propagation Methods and Technical Key Points for Taxus wallichiana var. mairei (Chinese yew)
Select a suitable nursery site: choose a fertile, loose, neutral or slightly acidic soil plot with good drainage, preferably a fertile plot within woodland or in semi-shade. Apply ample base fertilizer, rake level, and prepare the seedbed ready for planting. Seed propagation: seeds mature in October; after timely harvesting, place them in a mixture of water and fine sand (water-to-sand ratio 2:1). Rub the seeds on a washboard to remove the outer seed coat and wear down the hard fleshy seed coat. Choose a shady, dry plot with no water accumulation, dig a pit, and store the seeds mixed with wet river sand at a ratio of 1:2 in the pit. In March of the following year, take out the cleaned seeds and soak them in 50-degree baijiu and 40
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