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Method for rapidly propagating wheat aphids through highland barley seedlings

A technology of highland barley seedlings and wheat aphids, applied in the field of rapid propagation of highland barley seedlings and wheat aphids, can solve the problems of small potted seedlings, heavy workload and long cycle of wheat aphids, and achieve the effect of uniform individual size and reduced incidence

Pending Publication Date: 2022-04-26
AGRI RES INST TIBET ACADEMY OF AGRI & ANIMAL HUSBANDRY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, a large number of wheat aphids in the experiment are mainly collected in the field or raised in potted barley seedlings. The ages of the aphids collected in the field are inconsistent, and the individual differences are large, which often cannot meet the requirements of the experiment. The workload of raising a large number of wheat aphids with potted barley seedlings is heavy, the cycle is long, and it takes up space. , Potted seedlings are small in size and are easily affected by aphids and die

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The seeds of Tibetan Green 2000 were air-dried for 4 hours, soaked in warm water at 25°C for 8 hours, and the seeds of highland barley were hydrocultured for 4 days at a temperature of 20°C and a humidity of 60% to obtain new seedlings of Tibetan Green 2000. Inoculate the flexible new wheat-producing nymphs without nets on the new seedlings of Zangqing 2000, and raise them for 10 days under the conditions of temperature 20°C, humidity 60%, and light 17h / d, and replace the new seedlings on the 7th day.

Embodiment 2

[0031] The seeds of Himala 22 were air-dried for 4 hours, soaked in warm water at 25° C. for 8 hours, and the highland barley seeds were hydrocultured for 4 days at a temperature of 20° C. and a humidity of 60%, to obtain new seedlings of Himala 22. Inoculate the flexible new-growing wheat-producing Nymphae elongatus to the new seedlings of Himala 22, raise them for 10 days under the conditions of temperature 20°C, humidity 60%, and light 17h / d, and replace the new seedlings on the 7th day.

Embodiment 3

[0033] The seeds of Himala 22 were air-dried for 4 hours, soaked in warm water at 25° C. for 8 hours, and the highland barley seeds were hydrocultured for 4 days at a temperature of 20° C. and a humidity of 60%, to obtain new seedlings of Himala 22. Inoculate the newly produced Aphids nymphs with flexible activities on the new seedlings of Himala 22, and raise them for 10 days under the conditions of temperature 20°C, humidity 60%, and light 17h / d, and replace the new seedlings on the 7th day.

[0034] The highland barley aphid obtained by adopting the method of rapidly multiplying wheat aphids in the highland barley seedlings in Example 1-3 of the present invention has a uniform individual size, a subgenerational survival rate of over 90%, and no reduction in the reproductive rate. One aphid can produce nymphs More than 30 heads.

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Abstract

The invention provides a method for rapidly propagating wheat aphids through highland barley seedlings, and belongs to the technical field of plant pest control. The method for rapidly propagating the wheat aphids through the highland barley seedlings comprises the following steps that water culture is conducted on highland barley seeds till the highland barley seeds germinate, the wheat aphids are inoculated to the germinated highland barley seedlings, and feeding is conducted under the conditions that the temperature is 20 DEG C, the humidity is 60% and the illumination is 17 h / d. The highland barley aphids obtained by adopting the method for rapidly propagating the wheat aphids through the highland barley seedlings are uniform in individual size, the subculture survival rate is up to 90% or above, the propagation rate is not reduced, one aphid can produce 30 aphids or above, and the method is suitable for aphid toxicity measurement and other researches such as spraying and liquid immersion.

Description

technical field [0001] The invention belongs to the technical field of plant pest control, and in particular relates to a method for rapidly multiplying wheat aphids on highland barley seedlings. Background technique [0002] Wheat aphids (abbreviated as wheat aphids) are the main pests in wheat production in my country and even in the world, causing wheat yields to decrease by more than 10% all the year round, and more than 30% in major occurrence years; wheat aphids have seriously occurred at home and abroad in recent years. Wheat aphid is an important piercing-sucking pest on wheat. It mainly uses nymphs and adult aphids to suck the juice of wheat leaves, stems, and young ears, which affects the normal growth and development of wheat. White spikes are formed. The honeydew secreted by aphids on the leaves also affects the photosynthesis and respiration of plants, and also spreads barley yellow dwarf virus (BYDV), which seriously affects the yield and quality of wheat, cau...

Claims

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Application Information

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IPC IPC(8): A01K67/033A01G31/00
CPCA01K67/033A01G31/00
Inventor 姚小波雷雪萍陈新兰次仁央拉
Owner AGRI RES INST TIBET ACADEMY OF AGRI & ANIMAL HUSBANDRY SCI