Tiger larvae, also known as soil silkworms, root worms, etc., are an underground pest that is extremely harmful to crops. They mainly live in the soil and feed on the roots of crops, causing severe damage to the roots of crops, which affects the growth and yield of crops. Understanding the habits and damage characteristics of ground tiger larvae is of great significance for effective control of this pest.
1. The habits of ground tiger larvae.
1.Habits: Tiger larvae mostly live in the soil, lurking in the soil during the day and coming out at night. They prefer a humid, shady environment and are therefore more active during the rainy, wet season. In addition, tiger larvae are also chemotaxis, that is, they are attracted to certain chemicals, such as root exudates from crops.
2.Feeding habits: Tiger larvae feed on the roots of crops and have a wide range of feeding habits. They can harm a variety of crops such as wheat, corn, cotton, vegetables, etc. In the larval stage, they will constantly gnaw on the roots of crops, causing root damage and affecting the growth and yield of crops.
3.Growth and reproduction: Tiger larvae grow at a rapid rate, and generally enter the adult stage after several molts. In terms of reproduction, ground tiger larvae have a strong reproductive ability and can reproduce for multiple generations in a year. The best season for breeding is usually spring.
2. Harmful characteristics of ground tiger larvae.
1.Direct damage: Tiger larvae feed on the roots of crops, causing severe damage to the roots. Damaged roots are unable to absorb water and nutrients properly, leading to poor crop growth and even death. In addition, tiger larvae can also travel through the soil, damaging the soil structure and affecting the environment in which crops grow.
2.Indirect hazards: Due to the damage of ground tiger larvae, the growth of crops is seriously affected, resulting in a decrease in yield. At the same time, damaged crops are also susceptible to other pests and diseases, further aggravating the damage. In addition, the activities of ground tiger larvae will also damage the ecological environment of farmland and affect the sustainable development of farmland.
3. Methods of controlling ground tiger larvae.
In view of the harmful characteristics of tiger larvae, we can take the following measures to prevent and control them:
1.Agricultural prevention and control: improve the ecological environment of farmland and reduce the breeding and living conditions of ground tiger larvae through reasonable farming system, crop rotation and other measures. At the same time, strengthen field management, remove weeds and stubble in a timely manner, and reduce the habitat of pests.
2.Physical control: Using the phototaxis of ground tiger larvae, set up trapping devices such as black lights to trap and kill adults. In addition, manual capture can be used to reduce the density of larvae.
3.Biological control: the use of natural enemy insects, pathogenic microorganisms and other biological resources to carry out biological control of ground tiger larvae. For example, natural enemy insects such as parasitic wasps and parasitic flies can be introduced to control the number of tiger larvae.
4.Chemical control: When the density of pests is high and the damage is serious, chemical pesticides can be used for control. However, it should be noted that chemical control is easy to pollute the environment, so the principle of safety and environmental protection should be followed when using pesticides, and pesticides should be used rationally to avoid harm to the environment and human health.
In summary, as an important underground pest, ground tiger larvae are extremely harmful to the growth and yield of crops. By understanding their habits and hazard characteristics, we can take corresponding control measures to reduce the harm of pests and ensure the healthy growth and high yield of crops. At the same time, we should also pay attention to environmental protection and sustainable development, adopt scientific and reasonable prevention and control methods, protect the ecological environment of farmland, and realize the green development of agriculture.