Method 2: Soak the cloth bag in the boiled water of Zanthoxylum bungeanum, dry it, then put it into rice, then wrap some new Zanthoxylum bungeanum in gauze, put it on the top, middle and bottom of the rice respectively, and finally tie the bag tightly, which can not only repel insects but also prevent mildew.
Method 3: Put a few crab shells, turtle shells or scallions in a rice barrel, which can also have the effect of preventing insects.
Method 4: Spread plant ash one inch thick on the bottom of the rice jar, then spread white paper or gauze, pour the dried rice in, then seal it and put it in a cool and dry place, which can also prevent insects and mildew.
Method 5: Mix kelp and rice at the ratio of weight1:100, and take the kelp out every week to get rid of the moisture, which will not only keep the rice dry and mildew, but also kill Mi Chong.
Method 6: Put the rice in plastic bags with a weight of 5 kg, tie the bags tightly and take them out of the refrigerator for two days. Don't open them immediately, which will also kill Mi Chong.
Extended data:
The rice laid by the female rice elephant is completely invisible to our naked eyes. By the time they complete their development at the right temperature and climb out of the rice grains, the losses have already been caused. After the adult, the male rice elephant will send out aggregation pheromones, attract companions and the opposite sex to enjoy a good meal, and also attract corn elephant and grain elephant-two "relatives" of the same family.
Females also send out pheromones, and their pheromones are just used to attract the opposite sex. This "calling friends" has virtually increased the loss of grain.
When the humidity is 70% and the temperature is 30℃, it only takes 26 days to complete a life cycle, and when the temperature is 18℃, it takes 96 days to complete a life cycle. In different countries and regions, rice weevil can produce 4- 12 generations a year. It can be seen that in warm weather, the development speed of rice elephant is the fastest. When the temperature is lower than 1 1℃ or higher than 35℃, the rice weevil does not lay eggs.
At low temperature, the rice elephant will sleep, and this sleep will wake up after the temperature is restored. In addition, carbon dioxide can make the rice elephant's oxygen consumption surge and die. If the oxygen concentration in the storage environment can be controlled to be less than 2%, the rice elephant will die within 48 hours.
References:
People's Network-How to store rice without insects? Tips for purchasing rice
China Youth Network-Why are there little black bugs when rice is bought back for some time? How did it come from?