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Grasshoppers, often referred to as "fly fleas," are generally considered pests. However, in some rural areas like Qiu County, Hebei Province, local farmers have turned this perception on its head. For instance, the Gao Yunlong family transformed their life by breeding and selling grasshoppers, becoming financially successful in the process. Their annual income surpassed 10,000 yuan, and they even helped surrounding farmers develop leech farming, creating a new source of income for many.
Grasshoppers thrive in specific environmental conditions: the ideal temperature range is between 25°C and 32°C, with humidity levels of 85% to 92%. The soil moisture should be maintained at 15% to 18%. If the temperature drops below 14°C or rises above 40°C, the grasshoppers will stop developing and eventually die. When the temperature reaches 28°C to 30°C, the eggs begin to hatch. To prepare the hatching environment, non-toxic soil and sawdust powder are mixed in a 1:2 ratio, with water content between 20% and 30%. A layer of 3 to 5 cm of soil is placed in a container, then the grasshopper eggs are spread evenly on top and covered with about 1 cm of the mixed soil. Finally, the container is sealed with a plastic film. It should be checked every half day. Once small grasshoppers emerge, they are carefully transferred to the feeding area using a soft brush. The hatching process usually takes 10 to 15 days.
Newly hatched grasshoppers primarily feed on fresh wheat seedlings, corn seedlings, and other monocot plants, but their food intake is very limited. As they grow, from 1 to 3 years old, they require regular care, especially during rainy seasons. From the time they emerge until they become adults, it takes about 27 to 35 days. During this period, they shed their skin every 5 to 7 days, a total of five times. Once they reach maturity, grasshoppers begin to mate and lay eggs, with each female laying approximately 70 to 100 eggs.
To ensure optimal growth and reproduction, grasshoppers tend to live in groups and migrate. Therefore, after they emerge, it's important to provide them with gentle disturbances before mating to encourage migration, which helps increase both the number and quality of eggs laid. Before the first frost, the eggs should be protected by covering them with materials like wheat bran and weeds to keep them warm and moist, preventing freezing. Adult grasshoppers that are not being bred should be sold promptly to maintain efficiency in the breeding process.
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