Poison bait has a good effect on trapping and killing beetles.
The copper green beetle has miscellaneous food habits, such as citrus leaves, mature peaches and grapes, etc., and the harm is quite serious. At present, there is a lack of effective pesticides. For this reason, we used poison bait to trap and kill, and achieved good results.
When a large number of beetle adults appear from May to July, cut the mature watermelon (inferior melons) into several pieces, sprinkle a small amount of 3% Furadan granules on the surface of the pulp, separate them in soil pans, bamboo baskets and other containers, and place them on citrus tree forks. In a few days, a large number of beetles will be poisoned to death in watermelons. The effect of changing melon once a week is better.
For many years, several orange farmers in our village have been using this method, poisoning a large number of beetles every year. It should be noted that due to the high toxicity of carbofuran, attention should be paid to the safety of humans and animals when using this method.
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Preparation methods of several Earthwork Fish drugs
In the prevention and treatment of fish disease, if the fish medicine can be prepared by using green plants or traditional Chinese medicine on the spot, it can prevent red skin disease, enteritis, Gill rot and other common diseases, avoid toxic side effects, and save expenses. In this paper, the simple preparation methods of several kinds of fish medicine are introduced as follows: Sanhuang powder rhubarb, Huangmeng and Huangzen are prepared by the proportion of 5 ∶ 3 ∶ 2. When in use, add 1 kg of "Sanhuang powder" and 0.4 kg of salt to every 10 kg of fish concentrate, and add appropriate amount of water to make granular bait for feeding once a day.
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Scientific application of fishery medicine
Fishery drugs are all substances used to prevent, control and treat diseases, insects and pests of aquatic animals and plants, promote the healthy growth of cultured varieties, enhance disease resistance and improve the quality of aquaculture water. This paper introduces several correct methods for the prevention and treatment of aquatic animal diseases: first, there are many kinds of fishery drugs, and their physical and chemical properties are different. Therefore, before using fishery medicine, we must first accurately diagnose the main diseases and pathogens of the breeding and control objects, make a treatment plan, and then choose the right medicine to the case, otherwise not only
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