In the corn ear stage, it is difficult to control corn borers, ie, corn borers, due to the tall and dense plants, spraying of pesticides or other measures. The release of Trichogramma can significantly control the damage of corn borer, and the method is simple, continuous control effect is good, it is one of the green control measures in the corn field.
First, the main advantages
1, easy to use: the release of Trichogramma method is simple, you only need to hang the bee card on the plants, both men and women can operate, no risk of poisoning.
2, save time and labor: release of Trichogramma only need to hang 8 to 10 bee cards per mu, fast operation, adults can hang cards about half an average of about half an individual, its efficiency is much higher than the spray pesticide or sprinkle particles Agent.
3, no pesticide residues: Trichogramma is the natural enemy of corn borer, release Trichogramma will not cause environmental pollution and pesticide residues, can better protect the quality of fresh corn.
4. The effect of continuous pest control is good: Trichogramma can use self-propagation of pest eggs, compared with the use of chemical pesticides, the release of Trichogramma better control of corn borer.
Second, the use of technology
After entering the peak of the oviposition period of corn tadpoles, 8-10 bee cards per acre were placed and about 10,000 Trichogramma were released. When placing the bee, the bee card is hung evenly under the leaves of the middle corn or under the leaves near the cob. After the first bee was released, the bees were released again after an interval of 5 days. Each corn borer generation needs to lay the bees 2 or 3 times. When hanging cards, try to choose before dusk so as not to affect the field life of Trichogramma and reduce the pest control effect.
Third, the release of Trichogramma attention
1. Large-scale contiguous bee can improve comprehensive control effect
Trichogramma and corn borer can both fly at short distances. The release of Trichogramma by large area can effectively reduce the number of corn borer in the bee-keeping area and improve the long-term control effect of corn borer.
2. Avoid spraying chemical pesticides during bee feeding
Natural enemy insects such as Trichogramma are highly sensitive to pesticides. Spraying pesticides during the release of bees will greatly kill natural enemies and reduce the control effect of natural enemies on pests.
Canned Tuna,Fresh Canned Tuna,Frozen Canned Tuna,Canned Skipjack Chunk
ZHEJIANG RETRONX FOODSTUFF INDUSTRY CO.,LTD , https://www.retronxfoods.com