Occurrence and Control Techniques of Common Pests in Pepper

Pepper is rich in Va, Vc and other nutrients, and has a fragrant and spicy taste. It has the function of promoting appetite and helping digestion. It is one of the vegetable crops that our people like to eat, and because of its simple cultivation, strong resistance and yield. High, cultivation area increased year by year. However, due to the damage of pests and diseases, the loss of its output is great, especially the damage of pests is even more serious. How to strengthen the cultivation and management of pepper, control pests, and reduce the hazard rate is one of the issues that we need to solve.

First, small tiger 1, hazard characteristics. The larvae snapped off the stalks of the pepper seedlings near the ground, causing the entire plant to die, causing serious damage and even destroying the seedlings. 2, morphological characteristics. The adult body is 16-23 mm long, dark brown, and the forewings are divided into 3 segments by internal and external transverse lines, with prominent nephrotic, circular, rod-shaped and 2 black sword-like patterns; Gray without markings. The egg is 0.5 mm long and is hemispherical. The surface has vertical and horizontal lines. The first milky white color appears, and the red markings appear after the hatching. The larvae are 37-47 mm long, grayish black, covered with variously sized particles on the surface of the body. The gluteal plate is yellow-brown and has two dark brown longitudinal bands. The beak is 18-23 mm long, auburn, shiny, and the engraved dot on the back of the 5-7th abdominal segment has a pair of short thorns on the hip spine. 3, living habits. Nocturnal adult activity, mating and spawning, and egg production on dwarf weeds below 5 cm, especially on the backs or tender stems close to the ground, eggs spawned or stacked, with an average of 800-1000 eggs per female . Adults have strong tropism for black light and sweet and sour liquor. A total of 6 instar larvae, before the age of 3 in the ground, weed or young seedlings of pepper seedlings, little harm; 3 days after the lurking in the topsoil during the day and night out of harm, agile, brutality, can kill each other. The mature larvae have a dead-dead habit and are frightened into a ring. The developmental duration of crickets is 12-18 days, while the winter crickets are as long as 150 days. Small tigers like warm and humid conditions, the optimal development temperature is 13-25 °C, loose soil, good aggregate structure, strong water retention loam, clay loam, sandy loam are suitable for the occurrence of small tigers. 4, prevention and control methods (1) trapping and prevention. One is black light trapping and killing adults; the other is sweet and sour liquid trapping and killing adults, 6 parts of sugar, 3 parts of vinegar, 1 part of white wine, 9 parts of trichlorfon and mix thoroughly, or add proper amount of pesticide with pickle water, set in the adult stage. Both trapping effect. The third is to trap grass and kill larvae. Before the pepper is planted, the weeds can be eaten selectively by the tigers, such as gray vegetables, prickly peas, bitter leeks, small bindweed, alfalfa, Artemisia annua, imperata, and geese. Collect tiger larvae, either by capturing them manually or by mixing them with poisons. (2) Chemical control. The ground tiger is poorly resistant to 1-3 instar larvae and exposed to host plants or the ground. It is an appropriate period for chemical control. It can be used to increase the efficiency of 21% Cyanmar 8000 times, 2.5% deltamethrin or 20% fenvalerate 3000 times, 10% broma EC 2000 times, 90% trichlorfon 800 times, 50% Xin Sulphur 800 times spray control.

Second, the tobacco insect 1, damage characteristics. Larvae feed on buds and fruits and also eat stems, leaves and buds. The fruit is caused by rot caused by rot and a large number of fruit drop, which is the main reason for the reduction of production. In severe cases, the rate of pods is more than 30%. 2, morphological characteristics. Adult body length 15-18 mm, wing length 24-33 mm, body color is yellow, frontal wing kidney pattern, ring pattern and each horizontal line is clear, the middle horizontal line extends backward, but does not reach the ring pattern positive Below, there is a parallel line on the inside of the wide-brown black-brown wing. The abdomen is tan and the ventral surface is generally free of black phosphorus. Oval hemispherical, about 0.4 mm high, 0.45 mm wide, well-defined egg holes, reticular pattern on egg shells, 40-50 mm length of mature larvae, small patches of irregular body surface and conical shape The blunt small thorns, the two frontal lateral hairs connecting the line away from the lower end of the chest valve. The aubergine is about 17-20 mm long. The anterior segment of the body is thick and short. The valve is small and low, and it rarely protrudes. 3, living habits. The larvae usually take 4-5 generations a year. Wintering in earthworms with earthworms. Adult magpies grow out of nocturnal habits, tending towards black light, and tending towards willow branches. On peppers, eggs are sparsely produced on the front of young shoots, and a few are produced on the opposite side of the leaves. They can also be produced on buds, stalks, branches, petioles, etc. There are two peaks for spawning at night: 8-9 and 11-12. Egg hatching also has two peak periods, 5-7 pm and 6-9 am. The newly hatched larvae feed on the eggshells first and then feed on buds or young leaves of peppers. The 3rd instar larvae start to feed on the fruit of the peppers, and the larvae have the habit of turning fruit into damage. Duration of development: Eggs 3-4 days, larvae 11-25 days, cockroaches 10-17 days, adults 5-7 days. 4. Control methods (1) In the main production areas for production, if the annual damage is severe, the trapping zone may be planted in the vicinity so as to trap the overwintering adults for concentrated spawning and facilitate the extermination. (2) Remove the fruits that were foraging in time to prevent damage by larvae. (3) Chemical control. In the first half of June, the first generation larvae were controlled, and the second and third generation larvae were controlled from mid-July to the end of August. In September and October, the fourth and fifth generation larvae were controlled based on the development of the larvae and the damage conditions. Available 90% crystal trichlorfon 800 times, 10% permethrin 3000 times, 25% cyhalothrin 4000 times, 20% cypermethrin 3000 times or 2.5% enemy killed 4000- 6000 times liquid spray.

Third, aphids 1, hazard characteristics. Attached to the foliage, the nutrients extracted from the leaves are the main vectors for transmitting the virus. 2, morphological characteristics. The winged female has a body length of about 2.0 mm, with a black head and chest and a green belly. The wingless females are about 2.5 mm in length, yellow-green, green or black-green. 3, living habits. In a warm area or in a greenhouse, breeding is done with females that have no wings. The breeding temperature of locusts is 15-26°C, and the relative humidity is about 75.8%. 4. Control methods (1) Kill before mass reproduction. (2) Chemical control: 40% fenvalerate 3000 times solution, 10% one-time net wettable powder 2000 times, and 40% dimethoate 1000 times solution can be sprayed and prevented. Fourth, the red spider 1, hazard characteristics. Red spiders take sap from the back of the host's leaves with nymphs and adults. The victim leaves appear gray and white, and when they are severe, they become rust brown, causing premature defoliation, slow fruit development, and dead plants. 2, morphological characteristics. Adult body length 0.25-0.51 mm, female and male small, nearly a difference. Females are nearly round and have a large difference in body color, yellow-red, dark-brown, brown-green and dark green, usually red or rust-red. Oval spherical, 0.13 mm in diameter, transparent and colorless at the time of first production, then turned dark brown, with red eyes before hatching. The larvae are nearly round, with transparent color, red eyes, and 3 pairs of feet. After eating, the body color turns green and the body length is about 0.15 mm. If the body is about 0.2 mm in length and 4 pairs of feet, the body color is darker, and obvious blocky pigment appears on the body side. 3, living habits. Adults, nymphs, eggs are overwintered in the earth seams or on nearby weeds under the leaves of the host. Temperature and humidity are closely related to the growth and decline of red spiders, especially the temperature. When the temperature is about 28°C and the humidity is 35-55%, it is most conducive to the occurrence of red spiders, but when the temperature is higher than 34°C, Starscream stops breeding, which is lower than At 20°C, reproduction is suppressed. Red spiders have parthenogenetic habits, and unfertilized eggs hatch into males. When the eggs hatch, the eggshells are cracked and the larvae climb out. The larvae first come to rest on the leaves and enter the first instar stage after molting. Larvae and early nymphs are less active, late nymphs are active and bulimia, have a tendency to tend to tender, worms generally climb from the lower part of the plant, the edge of the damage moved up. 4, pharmaceutical control. Spraying on red spiders must be controlled at an early stage. The spiders should be sprayed immediately with the sprayer at the initial stage of spotting. The available agents are 73% of Creutine EC 3000 times, and 20% of Synergist 2500-3000 times.

Fifth, tea yellow wolfberry 1, hazard characteristics. The ocher is very miscellaneous and its host is very wide. The back of the pepper is damaged by oily stains. The yellowish-brown leaf is gradually growing. The leaf edge is bent downwards. The young stem becomes yellowish-brown. The plants with serious damage are short, twigs, fallen flowers, and become bald. Sharp, stalk, and fruit tip turn yellow-brown, tarnished, fruit growth stagnant and hardened. 2, morphological characteristics. Females have a body length of about 0.21 mm, an oval shape, light yellow to orange-yellow, and translucent, with 5 pairs of short feet and 4 pairs of slender feet. The male carcass is approximately hexagonal, conical at the end, smaller than females, about 0.18 mm in length, pale yellow to orange-yellow, translucent, and long and thick. The egg is elliptical, about 0.1 mm long, colorless and transparent, and the egg surface is lined with 5-6 rows of white nodules. The cubs are elliptical in shape and pale green. The abdomen is clearly divided into three sections. The ends are tapered, with one pair of bristles and three pairs of feet. If it is long and elliptical, it stays still and is surrounded by young skins. 3, living habits. It takes 7-10 days to complete the generation at 20-30°C. It can occur throughout the year in tropical and greenhouse conditions, but it has low fertility in winter. Chaetoceros is mainly male and female, and parthenogenesis can also be performed. However, unhatched eggs have low hatching rates and are all male. The eggs were sparsely distributed on the back of the young leaves and in the depressions of the fruit. The adult nymphs and larvae showed tenderness, especially on the back of the young leaves. The optimum temperature for the growth and reproduction of the tea plant is 16-23°C and the relative humidity is 80-90%. High temperatures inhibit its reproduction, and heavy rain can reduce the population of insects. 4, prevention and control methods. Strengthen the field investigation, found in the early flowering period of the pepper tea sorghum timely spraying control, spray once every 10-14 days, 3 times in a row. The focus of spraying is on the upper leaves, especially on the back of tender leaves, tender stems, flower organs and young fruit. The available agents are 57% Kotel EC 800 times, 48% Loester EC 1500 times, and 20% Emu WP 1000 times.

Six, Hummer 1, hazard characteristics. It damages the buds of peppers and affects the growth of peppers. Because of its large number, if it is not controlled in time, it will cause great losses. 2, living habits. The breeding of 17-20 generations a year, mostly adults buried in the clods, earth seams or litter between the overwintering, a few nymphs or beetles in the topsoil winter. Adults have a habit of upwards, hiness, and greenness, and are particularly active. They can fly with good vigor, but they are afraid of bright light. They are hidden in the back or growing point during the day and are very active in the evening. With adults and nymphs sucking the leaves of the heart, young leaves and flower juice, the heart of the victim plant cannot be opened, the growing point is atrophied, the leaves are twisted, the plants grow slowly, and the internodes shorten. In the temperature range of 25-30 °C, the soil moisture content of 8-18%, the most conducive to its growth and development, and consumptive cooling will cause a lot of death. 3, control methods. Chemical control, can be used 25% quizal EC, 5% acephamide EC, 75% dimethoate 1000 times, 2.5% deltamethrin 2000 times, 50% Bataan 2000 times, 20% good year 2000 times winter spray.

Name: Old Duck Soup stew
Spec.: 300g
Shelf life: 12 months
Ingredients: Radish, vegetable oil, edible salt, chili peppers, chicken oil, ginger, pepper, msg, incense, food additives, fresh chili peppers, edible salt and so on. Storage method: Normal temperature, avoid light storage, open the bag after refrigeration.

Laoya Tang Stew

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