Large silkworms are forced to ripen at high temperature to do a good job of heat prevention and cooling.

(1) High temperature weather prevents mulberry leaves from withering and steaming. Mulberry leaves should be fed only after mulberry leaves are cooled. At noon, mulberry leaves should be given appropriate replenishment to cool down and delay mulberry leaf wilting. It can be combined with feeding silkworm flies or disinfecting with Xiaoteling. The standard for killing silkworm flies is 1 milligram of silkworm flies, 0.5 kg of water, 4-5 kg mulberry leaves, mix evenly and feed silkworms every 48 hours. The standard of anti-disease water dispensing agent of Xiaoteling is to add 25 kg of water to each packet of main agent, first adjust the main agent into paste with a small amount of water, and then spray silkworm body or mulberry leaves.

(2) do a good job of heat prevention and cooling: during the big silkworm period, it is required to eat sparsely to prevent overdensity, each silkworm rearing area of about 35 square meters, do a good job of opening doors and windows and ventilation. In particular, the greenhouse or simple shed @ # @ 250mm, avoid the high temperature at noon, cover the greenhouse with sunshade net or grass curtain to cool down.

(3) disinfect the silkworm in time and do a good job of prevention: during the period of big silkworm, with the increase of the amount of mulberry, the labor force is relatively tight, the rural farm work is busy with high temperature and extensive management, it is easy to induce the occurrence of silkworm disease, so that the silkworm body is sprinkled with fresh lime powder in the morning and evening. Keep the silkworm seat dry and clean. It can effectively prevent the occurrence of hematological purulent disease.