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How to kill scarab beetles? Five effective control methods
The larvae of scarab beetles, commonly known as chicken-manure grubs, gnaw at the roots of seedlings. Besides biting through lateral roots and the main root, they can also strip and devour the root bark completely, causing missing seedlings and broken rows, and in severe cases even disastrous damage. Adult scarab beetles feed on both leaves and flowers, and they reproduce extremely quickly, so they can easily harm seedlings. They are a common major pest in forestry. The period when adults cause rampant damage is roughly from June to October, and this is the best time for control: it both controls the damage caused by adults and keeps the next generation's population density in check, yielding twice the result with half the effort.
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How to Apply Fertilizer Skillfully to Cotton? A Explanation of Practical Technical Points
Fertilizer is the material basis for high cotton yields, and applying fertilizer according to need is the highest principle of cotton fertilization. Where conditions allow, soil testing and fertilizer recommendation should be carried out, and based on the available nutrient content of the soil and the needs for high cotton yields, the type and amount of fertilizer to apply should be determined. For most cotton fields in the north, the amount of potassium fertilizer should be increased, the amount of phosphorus fertilizer reduced, and nitrogen fertilizer mainly used for topdressing, or a formula fertilizer with "high potassium, low phosphorus, medium nitrogen" should be applied. If a compound fertilizer with equal amounts of nitrogen, phosphorus and potassium is used, the amount per mu should not exceed 25 kg, plus an additional 12.5 kg of potassium fertilizer
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A Brief Introduction to the Effect of Mannich Base Ingredient in Killing Fish Parasites
Mannich base ingredient is a highly efficient biological insecticide extracted from the roots and leaves of the pure plant eucalyptus and made through scientific processing. More than 1000 years ago, people already knew that eucalyptus has medicinal value. Especially in rural areas of southwest China, its roots and leaves are commonly soaked into a liquid to directly kill maggots and other pests. In recent years, after in-depth research by relevant departments at home and abroad, preparations have been extracted from it, and it is recognized as a biological insecticide that is broad-spectrum, highly efficient, low-toxicity, easily degradable, residue-free, free of "three-causing" effects, and
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How to Trap and Kill Japanese Beetles? A Full Guide to Practical Control Methods
Hang 1 light-colored glass bottle every 3 to 4 trees, such as a beer bottle or a wide-mouthed medicine bottle. Wash the inside of the bottle clean, catch 2 to 3 live Japanese beetles and put them into the bottle, tie a rope around the neck of the bottle, and fasten it to a fruit tree branch, with the bottle mouth 2 cm from the branch. Japanese beetles have a gregarious habit and will crawl into the bottle one after another. Once the bottle is full of beetles, take it down and scald them to death with hot water.
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What to Do About Sheep Mite-Killer Poisoning? A Detailed Guide to Treatment Methods
On the morning of May 16, 2006, 5 rams weighing 50-60 kg at the sheep farm of the prison area showed varying degrees of poisoning reactions after applying undiluted mite-killer. Of these, 3 were lying on the ground unable to get up and reacted severely. Upon arriving at the scene, it was found that 3 shorn rams were lying on the ground (1 had already died). The sheep showed muscle tremors, foam at the mouth, empty chewing, opisthotonus, rigid limbs, paddling movements, difficult and labored breathing, and a fixed stare. One of them was urgently given 10 ml of atropine by subcutaneous injection and 10 ml of pralidoxime by intravenous injection (mixed into 2
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72% Biprofezin? WP is a veritable killer of rice pests
This product has a strong stomach-poison and contact action, high insecticidal activity, and excellent systemic activity; it can be absorbed and translocated by crops to kill relatively concealed pests. It is highly effective against the main rice pests, planthoppers and stem borers, and also has good control efficacy against thrips, leafhoppers, rice weevils, etc. At the same time, it can also control various pests on vegetables and fruit trees. Method of use: To control rice pests, use 50 g of this product per mu, and at the peak of young nymphs or larvae, dilute with 30 kg to 50 kg of water for conventional spraying, or dilute with 10 kg of water and spray with a mist sprayer. In the middle and late stages of rice growth
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What to Do When Cotton Is Killed by Rainwater? A Detailed Guide to Post-Disaster Remedial Measures
Drain waterlogging and clear silted ditches in time. After a cotton field is flooded, the soil's physical and chemical properties change, humidity becomes too high, and air is lacking, which can suffocate the cotton plants to death. Even if they do not die, they are prone to disease, and root penetration is hindered. The waterlogging must be drained as quickly as possible, and at the same time the clogged perimeter ditches, waist ditches and bed ditches should be cleared to lower the groundwater level and create a good ecological environment for the cotton seedlings so they can resume growth. Straighten and wash the seedlings in time, washing them as the water recedes. Clean the silt off the cotton leaves and stems so the leaves can quickly recover
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Pruning roses takes skill: master these few techniques for more vigorous blooms
Rational pruning is the key to controlling the flowering period of roses. In practice, pruning should be carried out according to the overall growth vigor of the rose plant. There are two types of buds on rose flowering shoots. At the 1st to 5th leaf below the flower, the upper buds on the shoot are pointed; the flowering shoots they produce are short, with about 6 to 9 leaves, and they set buds early, usually in 15 to 18 days, with small flowers. The middle buds on the shoot (at the 6th to 9th leaf below the flower) are round; the flowering shoots produced by round buds are long, with about 13 to 16 leaves, and they take longer to set buds, usually around 25 days, with large flowers; the bud eyes at the base of the shoot are flat, the buds have low vigor, sprout slowly, and easily produce vigorous water shoots, and the flowering shoots take even longer to set buds, usually more than 30 days.
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How to kill insects and disinfect the production environment for edible fungi
With the development of edible fungus cultivation, diseases occur frequently in edible fungus production, accompanied by cross-infection, making continuous production increasingly difficult and causing great losses to mushroom farmers. Therefore, doing a good job of disinfecting the production environment is crucial to the success of edible fungus cultivation. 1. Take disinfection and sterilization measures in the production area: clean up the sanitation outside the cultivation shed, including around the work site; strictly clean up stables and latrines, garbage, etc., especially thoroughly clean up contaminated fungus bags and spent mushroom substrate waste, and spray a mixed solution of high-concentration carbendazim and phoxim, etc.
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Correct Methods and Techniques for Skillfully Harvesting Edible Mushrooms
Edible mushrooms are nutritious vegetables much loved by urban and rural people, and they are also an important way for farmers to increase income and become wealthy. Therefore, the following techniques should be mastered during harvesting: 1. Grasp the best harvest period. Various mushrooms and wood ear fungi are basically ready to harvest when they mature in July and August, when their appearance is beautiful, their color is fresh and glossy, and they taste good. Take shiitake mushrooms as an example: the signs of maturity in July and August are that the partial veil has broken, the cap has not yet fully opened, and there is still a slight inward curl, forming a "gong rim"; the gills have all elongated and changed from white to
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