Method for feeding single Tuta absoluta

Abstract

The invention belongs to the field of insect cultivation and particularly relates to a method for feeding single Tuta absoluta. The method includes: using fresh-keeping tomato leaves as the host plants to feed a Tuta absoluta egg until the egg grow into a pupa. The method has the advantages that when the method is used for feeding single Tuta absoluta, a good egg feeding effect is achieved, and agood larva and pupa feeding effect is achieved; by using a cylindrical completely-transplant plastic feeding box, direct observation can be achieved, and convenience and efficiency can be achieved; the host leaves are long in fresh-keeping time; the method is high in practicality and capable of satisfying the requirements of single insect cultivation and subsequent related researches.

Description

technical field [0001] The invention belongs to the field of insect breeding, and in particular relates to a method for raising South American tomato leafminer with a single head. Background technique [0002] South American tomato leaf miner Tuta absoluta (Meyrick), alias tomato leaf miner, tomato wheat miner, tomato wheat moth, English preferred common name the tomato leafminer, international common name the South American tomatomoth, belongs to Lepidoptera (Lepidoptera) wheat Moth family (Gelechiidae), native to Peru in the west of South America, is a worldwide quarantine invasive pest, which mainly harms tomatoes (including processed tomatoes, fresh tomatoes, cherry tomatoes / cherry tomatoes, etc.), eggplants, potatoes, etc. , mushrooms, ginseng fruit, tobacco, etc., and spread rapidly, the yield reduction rate is as high as 50-80% when it occurs seriously, and even destroys the seeds for replanting. At present, although the South American tomato leafminer only occurs in...

AI Technical Summary

Problems solved by technology

[0005] However, there are following defects in the first and second methods: 1, because the weight of the culture vessel is all attached to a single leaf, it often causes the blade to break off and fall off in advance, and the insects have not yet fully developed the leaves; 2, because the culture vessel After being fixed, it cannot be rotated at will, and only a certain angle of the blade can be observed, which is not conducive to observation, especially to the observation of eggs and first egg larvae; when observed through a culture vessel containing spun yarn or spun yarn bag, the vision is blurred, especially for latent larvae. The observation effect of leaf pests (such as leaf miners, leaf miners, etc.) is not good; 3. Due to the small space and limited leaf area, larvae will also leave the caged area through sneaking passages, making it impossible to raise and observe single heads. Continued, the experiment was forced to terminate; 4. Potted plants take up a lot of space and can only be carried out in fields, greenhouses or small artificial climate chambers. The environmental conditions in fields and greenhouses are difficult to control, while small artificial climate chambers can control Temperature and humidity, but the scale of breeding is very limited. For example, a small artificial climate chamber with a volume of 450L can only place up to 4 potted plants. One plant is counted as 10 true leaves, and only about 40 plants can be kept and observed at the same time. insect

[0006] The defect of the third method is that the culture vessel cannot be placed sideways or upside down for observation (sideways or upside down will cause hydroponic water to pour), resulting in unclear identification of insect age and state, and inaccurate observation results, especially for leaf miners. The observation results of insects, eggs (about 0.3mm) and newly hatched larvae (body length about 0.5mm) are inaccurate; the breeding scale of this method is also difficult to expand, for example, a small artificial climate chamber with a volume of 450L can only Observe and feed 40-50 insects at the same time

Images