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How to control the ginger skipper? These methods are simple and effective
1. Morphological characteristics Adult: body and wings dark brown, forewings with 5 grayish-white spots, the spot located below the discal cell is larger. The center of the hindwing has one large white spot. Egg hemispherical, flat at the top, with the rim in contact with the leaf surface forming a brim shape, slightly wrinkled, with more than 50 raised fine striations on the side. Larva grass-green, after the 3rd instar two nearly crescent-shaped yellow spots appear on both sides of the dorsal line of the sixth abdominal segment, spiracles white. Pupa elongated spindle-shaped, yellow-green, body covered with white waxy powder. 2. Life habits and occurrence pattern The ginger skipper occurs
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Pre-planting to planting-period control methods for chili peppers
1. Adjust the planting structure and carry out rational crop rotation. Avoid continuous cropping with cucurbits and solanaceous vegetables; a rotation of more than three years can be carried out with cruciferous cabbage and Chinese cabbage, and with liliaceous Welsh onion, garlic, etc. 2. Choose disease-resistant varieties. Such as Haijiao No. 2, Zhongjiao No. 4, Zhongjiao No. 5, Zhongjiao No. 6, Zhongjiao No. 7, Zhongjiao No. 8, Tianjiao No. 3, Tianjiao No. 4, Tianjiao No. 6, Zhijiao No. 1, Zhijiao No. 9, Fengjiao No. 1, Dujiao No. 1, Jinjiao No. 8, Zaoshu No. 1, etc. 3. Seedbed disinfection. You can use 50% carbendazim at 1:
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Occurrence and Integrated Control Methods of the Eggplant Yellow Spot Borer
Since the 1990s, eggplant has developed rapidly in Jingning County, and the county's planting area has now exceeded 1,300 hectares, with an annual total output of more than 51,000 t. At the same time, the eggplant yellow spot borer has shown an increasing trend of damage in the county, affecting the development of eggplant production. For this reason, the author conducted a preliminary study on the occurrence pattern and integrated control techniques of this pest. 1 Occurrence and damage characteristics The eggplant yellow spot borer, also known as the eggplant borer, belongs to the order Lepidoptera, family Pyralidae. Its larvae bore into and damage eggplant flower buds, stamens, ovaries, tender stems, tender shoots and
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What are the prevention and control methods for bighead carp emaciation disease
1. Cause: Due to excessive stocking density and insufficient feed, some fry or fingerlings cannot obtain enough feed and become emaciated and die. 2. Symptoms: The diseased fish has a shrunken, withered body, a large head and a small tail, a back like a knife blade, pale gill filaments, severe anemia, sluggish activity, and a darkened body color, dying not long after. 3. Prevalence: This disease mostly occurs in the later stage of the fingerling rearing phase. Fingerlings in overwintering ponds and overstocked adult fish are affected due to improper stocking density and mixing ratios and insufficient feeding, especially bighead carp.
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What are the prevention and control methods for fish autumn plague?
In autumn, fish are highly prone to acute diseases with extremely high mortality rates, such as emaciation disease, small claw worm, gill rot disease, and water mold, commonly known as "autumn plague." To prevent and control outbreaks of "autumn plague" in fish, seven key points should be well managed. 1. Improve the ecological environment. Pay attention to ecological prevention and control, appropriately feed full-price concentrated feed, tender grass, etc., to meet the nutritional needs of fish growth as much as possible, so as to improve their immunity. 2. Actively add fresh water. Adding fresh water can bring in oxygen and various nutrient elements, and can also dilute organic matter in the pond water and
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What are the control methods for Ichthyobodo? A must-read for fish farmers
① Copper sulfate: before stocking fry, soak them in 8 g of copper sulfate per cubic meter of water for 15-30 minutes. ② Copper-iron mixture: during the disease season, hang a bag of copper sulfate and ferrous sulfate (5:2) once every half month. ③ Spray the whole pond with a mixture of copper sulfate and ferrous sulfate (5:2), using 0.7 g per cubic meter of water. ④ For each mu at 1 m water depth, spray the whole pond with 15-20 g of avermectin. ⑤ Soak diseased fish in 2% salt water or 0.05% formalin for more than 15 minutes. ⑥ During the disease season, use 15 kg of chinaberry leaves per 500 cubic meters of water
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What are the control methods for the tea white scale (Pseudaulacaspis pentagona)?
The tea white scale belongs to the order Homoptera, family Diaspididae. It is distributed in most tea-producing provinces across the country and is an important tea tree pest in East China and Southwest China. Besides damaging tea, it also harms various plants such as citrus, pear, and apple. It damages tea trees by nymphs and female adults parasitizing on branches and trunks and sucking sap. Affected tea trees sprout sparsely, decline in vigor, age prematurely, and in severe cases shed a large number of leaves or even die. Morphological characteristics: the female's scale cover is grayish-white, about 1.5 mm long, narrow and slightly curved like a bent eggplant, slightly wider at the rear end and with a brown scale point at the front end.
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Identification and control methods of the tea shot-hole borer
The adult and larval stages of the tea shot-hole borer both bore into the branches and trunks of lychee and longan, with branches 1-2 cm in diameter being the most heavily affected, and numerous nearly circular small entrance holes visible on the exterior. If an affected branch is cut open, several nearly ring-shaped horizontal small galleries will be found in the xylem, and dark brown beetles smaller than a grain of rice, or milky white legless larvae and pupae, are commonly seen. Because the transport of water and nutrients in the affected branches is blocked, the trees weaken in vigor and often produce dead branches and broken branches, and entire young trees have even been found killed by the damage. In recent years the tea shot-hole borer
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Occurrence and Damage Characteristics of Tea Tussock Moth and Integrated Control Methods
In recent years, with the development of pollution-free tea and organic tea production, the frequency and amount of chemical pesticides used in tea gardens have decreased, and some tea gardens even do not use chemical pesticides, resulting in aggravated damage by the tea tussock moth in a short period. In the county where the author works, tea tussock moth damage has occurred for several consecutive years, and after being damaged, the tea plants were left with only bare branches, greatly affecting the economic income of tea farmers. 1. Damage symptoms: The tea tussock moth larvae bite and feed on leaves, causing leaf notches and bare branches. 1st-2nd instar larvae gather on the underside of leaves to feed on the mesophyll, leaving only the epidermis and veins, and the damaged leaves appear transparent
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Identification and Control Methods for the Tea Bug and the Yellow-Spotted Bug
Distribution area: Morphological characteristics: The adult tea bug (Halys dentata) is about 15 mm long and 8-9 mm wide. The body is flattened and oval. Grayish-brown, with a slight purplish-red tinge. The antennae have 5 segments; segment 2 is longer than segment 3; both ends of segment 4 and the base of segment 5 are yellow. The thorax dorsum and forewings are densely covered with dark brown punctures. The eggs are cup-shaped and grayish-white. 20-30 eggs are arranged into an egg mass. The nymph is slightly flattened and round, dark brown, with dark spots on its back. The adult yellow-spotted bug (Erthesina fullo) is 20-30 mm long and 8-11 mm wide. Grayish-brown, with the body dorsum and forewings densely
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