Ratio of adult houses to larvae farming area: 1:10 (for example: 100 square meters of adult rooms, 1000 square meters of larval houses)
Adult black water fly
First, larval breeding: okara sprayed with lactic acid bacteria (a ton of okara can spray one kilogram of lactic acid bacteria), the surface can be sprinkled with a layer of wheat bran or sawdust (the purpose is to improve the breathability of okara). The thickness of the feed is 3-5 cm in summer and 10-15 cm in winter. Larvae above 15 degrees to resume normal activities, 30-35 degrees for the most suitable temperature, humidity of 60% -75%, larval breeding to avoid light, ventilation, anti-rats, sparrows and so on.
Black water fly eggs
Second, the pre-pupal stage: take out 5% of the larvae to keep the seeds, when the insect body becomes black and brown, do not feed it, separate it, cover it with 1-2 cm of wheat bran or sawdust (temperature 30-35 degrees, air humidity about 50%), and so the tail of the black water fly is cocked up, that is, into a pupa, it is necessary to sift out the pupa, put it in the plastic box (put 1/3 of the position in the box), put the plastic box with the pupa in the adult room.
Black water fly pre-pupae
Iii. Adult breeding: (Focus)
1, temperature: about 30 degrees (25-35 degrees);
2, humidity: air humidity of about 65% (the humidity to be displayed on the hygrometer is 80%-90%);
3, light: enough light (if continuous rainy days need to fill the light);
4. Density: Take the 50 square meters of breeding area as an example: you need to add 20 kg of pupae every day (if you add it once in 7 days, you should add 140 kg at a time), and the first time you can add more; The information box can be placed in 10 pieces, and each box can put 25-30 ovipositors (egg laying plate size: length: width = 30 cm: 5 cm);
5, information: fresh dried chicken manure 4 pounds plus 6 pounds of water, put into the barrel sealed, fermentation in the sun for 2-3 days can be; If placed in the adult room in winter 2-3 effect is the same; A fermented message can be used for up to a month, the information in the adult worm room needs to be replaced once every 7 days, one-third of the box can be added at a time, and a little new information can be added to it every day and stirred.
Black water fly environmental protection industrial park
6, ventilation: every day need ventilation, summer can eat breakfast on the window ventilation, night to close the window can be, winter can be through 2-3 times a day wind, a time 10-20 minutes.
Fourth, the incubation of insect eggs: refer to the video (note that the eggs can not be wet, so you can not spray water on the eggs), the temperature is 30-35 degrees, and the air humidity is 65-70%.