1. How to control dry cutworm of Tenebrio
(1) Etiology: The main causes of the disease are air-drying, high temperatures, and low feed water content, causing serious water shortage in the body of Tenebrio. It is prone to such symptoms when it is heated in a coal stove in winter, or when there is no rain at high temperatures (over 35 degrees) for several days in the summer.
(2) Symptoms: Dry and dry from the head and tail, and then slowly develop until the whole body is dry and die.
(3) Prevention and cure: In the summer of high temperature and high temperature, keep the breeding box in a cool and ventilated place, or open the doors and windows to ventilate, add various vitamins and green fodder in time, and sprinkle water on the ground to reduce the temperature and prevent the occurrence of the disease. When heating in coal stoves in winter, the humidity of the rearing room should be frequently measured with a temperature and humidity meter. If the temperature is lower than 55%, watering and humidifying the ground or increasing the moisture in the feed or feeding the green feed should be performed. The occurrence of this disease.
(4) For dry and dead Tenebrio, it should be picked out and thrown away in time to prevent healthy insects from eating and getting sick.
2, how to control Tenebrio rot (soft rot)
(1) The disease mostly occurs in the rainy season with high humidity and low temperature. Due to the humid air in the breeding area, the excessive force caused by the difficulty of screening and the excessive damage caused by the insect body, coupled with poor management, faeces and feed contamination and incidence.
Symptoms: manifestations of sluggish action, loss of appetite, low birth weight, black urine, severe black body, soft, decay and death. Black worms will also pollute other insects. If they are not dealt with in time, they will cause all the insects to die. It is a more serious disease and a major disease that can be prevented in summer.
(3) Prevention and control: After discovering this condition, it is necessary to reduce or stop the feeding of vegetables immediately, clean up the excrement of insects and pests in time, open the door and window to ventilate the tides, and pick out the soft and darkened pests in time. If the humidity in the continuous rainy room is low, the temperature of the combustible coal stove will rise to provide a suitable temperature.
Drug control measures: 0.25 grams of chloramphenicol or oxytetracycline mixed bean flour or cornmeal 250 grams / box feeding, etc., and then changed to bran mixed with green material feed.
3, how to prevent locust invasion
The locusts can be said to be the tiny animals that have the greatest vitality in the animal kingdom and their amazing reproductive ability. They can infringe most of the animals, and even the humans are not spared.
The length of the adult body of aphids is less than 1 mm, and the body is soft, arched, grayish, translucent and shiny. There are several sets of bristles on the surface of the body and there are four pairs. Juveniles have three pairs of feet, and they have four pairs of feet when they grow up to Ruoqiang. High temperature, high humidity and a large amount of food are the environmental and material conditions for the growth of aphids. Under this condition, roundworms occur every 15 days or so, and each female can lay 200 eggs, showing its strong fertility.
The maggots that damage the mealworms are mainly whitefly, and they are to be called "puppet", "white pupae" and "prickly heat". In summer and autumn, it is easy to breed in rice bran and wheat bran to degenerate feed. If the rice bran with locust is fed into the box when it is fed, it is rich in nutrition under the suitable environmental conditions of high temperature and high humidity, and the locust is highly fertile and can reproduce and develop in a short period of time. Spread to all breeding boxes.
(1) Cause: Generally, high temperature and high humidity are prone to locust disease in July to September. Feeding eggs with quail eggs is the main cause of larvae damage.
(2) Symptoms: The aphid generally lives on the surface of the feed and can find clusters of white peristaltic aphids that infest the already deteriorating feed and rotting insects. They feed Tenebrio eggs, bite or eat weak larvae and are currently molting their skin. The larvae pollute the feed. Even if it cannot be eaten, it disturbs the daytime and nighttime rest of Tenebrio, causing the insect body to be inflicted and debilitating, resulting in the death of the appetite.
(3) Control:
1) Choose healthy worms: When choosing insects, select individuals with strong activity and no disease.
2) Prevent diseases from entering the mouth: For the mealworm meal, it should be free from miscellaneous insects and mildew. Store it in sealed season during the rainy season. The rice bran, bran, soil and grain surface, and coarse cornmeal should be best sunburned and then fed. . The moisture content of peels, vegetables and wild vegetables mixed in the bait cannot be too high. Also remove insect waste and food in time to keep the food dish clean and dry. If you find that the feed is fleas, you can move it to the sun for 5 to 10 minutes (feed leveling out) and you can kill the worm. The processed feed should be sun-dried or expanded, disinfected, and sterilized. Or feed bran, rice bran, bean cake, etc., fry, hot, steamed, cooked and then feed. And the amount of investment should be appropriate, not too much.
3) Site disinfection: Fungicides and acaricides should be sprayed on the premises and equipment regularly. Normally 0.1% potassium permanganate solution is used to spray and disinfect breeding rooms, food trays, and drinking fountains. Can also be used 40% of dicofol 1000 times dissolved feed spraying places, such as wall corners, terrariums, feeding worms, or directly sprayed on the feed, the killing effect can reach 80% to 95%. Can also be diluted with 40% dicofol EC 1000 ~ 1500 times liquid, spray the ground, must not be too wet. Usually spray 7 times a day, even spray 2 or 3 times, the effect is better.
4) Trapping kills locusts:
1 Put the fried chicken and fish bones into the breeding pond, or dip the rice bran water with a straw rope, dry it and put it into the pond to trap and kill the earthworms. Take it out every 2 hours and take it out for fire. It is also possible to use boiled bones or fritters wrapped in a gauze and put it in a box. The bones or fritters with the aphids can be taken out and thrown away within a few hours, and they can trap more than 90% of the aphids.
2 Put the gauze flat on the surface of the pool, place a semi-humid semi-humid soil with chicken and duck dung, add some sauteed bean cakes, rapeseed cakes, etc., about 1 to 2 cm in thickness, and the locust smells the aroma. , will go through the gauze to feed. 1 to 2 days after removal, can attract a large number of aphids. Or brewed bran into a small group of 1-2 cm in diameter, placed on the soil surface in several places during the day, the locust will swarm and eat. After 1-2 hours, remove the bran pellets and remove 70% of the worms several times in succession.
4, how to prevent ant damage
Ant pests are generally prone to occur during the wet summer months. Control methods:
(1) Separation of clean water: When feeding Tenebrio with boxes, pots, etc., put the four short legs of the support box and bowl into one container that can hold water, and then fill the container with clean water. As long as the container maintains a certain amount of water, the ants will not infect Tenebrio.
(2) Lime repellent method: It can spread 2-3 kilograms of quick lime per square meter around the tanks, ponds, pots, etc. of the cultured yellow mealworms, and keep the annular width of the quick lime 20-30 cm, using the quick lime for corrosion. Sex, which has a repellent effect on ants, and the ants touch lime, the body surface will be stuck with lime and feel unwell, so that ants are afraid to attack Tenebrio.
(3) poison bait trapping method:
Take 50 grams of borax, 400 grams of sugar, and 800 grams of water. After fully dissolving, pack it in small dishes and place it where ants often appear. When ants smell white sugar, they like to come in and suck the white sugar liquor. Poisoning died.
(4) Ants fear the odor of tomatoes, and chopped rattan vines around the culture pond to prevent intrusion.
(5) With the new chronic ant medicine "Chang ant net" placed in the place where the ants are infested, the ant can drag the medicine into the nest and kill the entire nest of ants after 2-3 days.
5, how to prevent rodents
For Tenebrio, rats can be said to be the most difficult natural predators. The mouse can climb high, and drill holes again. After entering the rearing room, they will nest on the roof and wait to infiltrate the food box to swallow Tenebrio or wheat bran. Therefore, farmers should pay special attention to observation to prevent rats from invading the breeding room and causing losses.
Control methods:
1. The corners of the interior walls should be hardened, leaving no gaps in the openings. The doors must be kept tight so that no rats can enter. Doors, windows, and feeding pots are sealed with iron screens, often sweeping the breeding room to remove dirt, garbage, etc., leaving mice free of hiding places.
2. If it is found to be available for manual killing, or use mouse traps and drugs to kill. Due to the toxicity of rodenticide, the state prohibits its use. There is now a "David" rat drug that works chronically after a few days and can be used to eradicate rats. It is also possible to keep a cat in the breeding room to drive the rats. If rats are difficult to prevent, they must use sufficient feed to prevent rats. According to our observation, if wheat bran and other feeds are sufficient, rats generally only eat food and do not eat mealworms. If there is no wheat bran, it invades Tenebrio.
Prevention and Control Techniques of Tenebrio Molitor Infection Tenebrio sometimes cause damage or disease during growth. In the period from July to September, the damaging pests are prone to occur, and the feeding of fleas with eggs is the main reason for damaging. The main diseases are stem blight and soft rot. The high temperature in the breeding place, air drying, and too little green feed in the feed can easily lead to a large amount of water loss in the worms, which leads to thin and stiff worms. The color and the normal worm body have no difference or appear yellow-white. When the air is humid or the body is mechanically damaged, it is easy to infect the cross-infection between soft rot and the body. The pathogen is probably a kind of bacterium. The early-stage worm body shows slow activity and antifeedant; the middle body becomes soft, The color turns dark brown and the body is a brown, viscous liquid; the body color gradually changes from dark brown to black, and the body loses water and hardens. If the mealworm larvae are exposed to sunlight, especially freshly exfoliated larvae will die due to epidermal damage and water loss, manifesting as pale body curvature and rough epidermis.
The prevention measures are as follows:
1. The main measure is to improve the feeding conditions. When drying at a high temperature, fresh feed or water spray should be added in time to prevent stem blight. At the same time, fresh feed that has not been eaten on the day should be picked out to prevent feed rot and promote the breeding of pathogens. For wet weather areas, the number of sieves should be increased appropriately. Feeding should be done once a day or two days. It is better to have a slight surplus in the aquaculture tanks, which can also reduce the incidence of Tenebrio. After the end of each batch of breeding, the place and the culture vessel should be disinfected. 0.5% to 1.5% potassium permanganate solution can be used to spray the surface of the object to be disinfected; bleaching powder, formalin solution and other disinfecting drugs can also be used.
2, appropriate to reduce the breeding density can reduce the incidence of disease, to avoid the excessive density of insects caused by mutual killing wounds, to create opportunities for the invasion of bacteria.
3. For areas where locusts occur more severely, the feeds used should be diluted and exposed to sunlight for 20-30 minutes at noon to kill the galls. If necessary, kill the galls with 40% dicofol 800-1000 times at the breeding sites and utensils.
4, for the onset of the body of the worm to be picked out at the same time with 0.25 grams of oxytetracycline ground mixed 200 to 300 grams of cornmeal fed 3 to 5 days, furazolidone, chloramphenicol, etc. have a good effect.
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