At present, it is the key period for the cultivation and management of facilities for strawberry cultivation. Red spiders, thrips, whiteflies and other pests have seriously affected the growth of strawberries in greenhouses, and the frequent use of chemical agents will affect the quality of fruit. In Changfeng, the first county of strawberry cultivation in the Chinese facility, the strawberry sheds are bred with two kinds of "special insects", the cockles and the cocolored ladybirds. It turns out that strawberry farmers are trying to adopt insecticide-based "biological therapies" to ensure the quality of strawberries.
In Hefei Tianfeng Strawberry Farm, the new varieties of strawberry seedlings planted in this year's greenhouse are gratifying. At this time, Tian Feng, the person in charge of the base, held a bottle in his hand and walked backwards to the strawberry leaves. As he approached, he saw some things like wheat bran falling from the bottle. what is this? "I am using beneficial insects that are invisible to the naked eye and are mainly used to prey on some of the pests in the strawberry field." Tian Feng said that the insect he puts in the strawberry field is a predator, especially Like spider mites and whiteflies in the shed, a predator can prey on 300-500 spider mites throughout his life. "Using predators to control insects can, on the one hand, eliminate chemical pesticides, avoid pesticide residues, and reduce environmental pollution; on the other hand, because of physical control, it can greatly reduce pest resistance."
Using this method of “treating cockroaches with cockroaches†to control cockroaches harms both standard production requirements and allows greenhouses to bid farewell to pesticides. “In terms of production costs, now with biological control measures, the cost of pest control is actually higher than that of pesticides. The pest control cost per mu is 100 yuan. However, the quality and safety of strawberries are higher, and the market price will naturally be higher in the future. Some.†Tian Feng said frankly, strawberries in the production process, because of thin skin, fresh fruit, can be directly imported, so in terms of quality and safety must be cautious.
It is understood that besides the predation of a predator at the strawberry base, Tian Feng has also stocked another beneficial insect in his own strawberry garden.
"This is a ladybird ladybird that lays on the strawberry crop to eat locusts." Tian Feng said that the pests in the strawberry base caused headaches for the raspberry farmers, while the cockroach crickets were red spiders and whiteflies. Such as a predatory good for the main food. In the shed, when the crowberry meets with the red spider's narrow road, although the red spider has a body several times larger, in the face of predatory licking mouthparts, it can only be carried away. The Harmonia axyridis and the cockles of the cockles are fighting side by side, each exerting its own feeding strength, and the pests have no chance of disaster in the strawberry greenhouse.
Biological pest control is good, but what is the cost of insects?
“The method of pest control is from the Fujian Academy of Agricultural Sciences. About the cost, in fact, almost the same as spraying pesticides, 150,000 predators are needed per acre, and the pest control cost is around 100 yuan. This can guarantee 2 months. There will be no insects in the area. Two months later, depending on the specific circumstances, it will be decided whether or not to continue laying.†Wei Fasheng, deputy director of Changfeng County Agricultural Technology Promotion Center, said that predatory feeding in strawberry greenhouses mainly catches red spiders, whiteflies and thrips , Ladybug kill aphids, this "biological therapy" in the strawberry planting in winter will effectively ensure the quality of strawberries.
"In the strawberry production, do not use chemical pesticides, this can effectively ensure that the strawberry pesticide residue does not exceed the standard, so that everyone can eat the strawberry with high quality." Wei Fasheng said that nearly 300 acres of strawberry farm in Changfeng County this year took pest control Methods The experiment will be carried out. The next step will be to summarize the experience and fully promote it next year. Strive to use three to five years for the full coverage of Changfeng Strawberry Biocontrol.
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