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Combined method for preventing and killing cotton bollworms biologically

An integrated method and technology of cotton bollworm, applied in botany equipment and methods, horticulture, application, etc., can solve problems such as cotton yield loss, and achieve the effect of reducing harm

Inactive Publication Date: 2007-03-07
XINJIANG INST OF ECOLOGY & GEOGRAPHY CHINESE ACAD OF SCI
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

The 2nd and 3rd generation larvae are the main period of damage to cotton, eating flowers, drilling buds, and boring bells, causing great yield loss to cotton. weed damage

Method used

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  • Combined method for preventing and killing cotton bollworms biologically

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Embodiment

[0031] A kind of integrated method of ecological control cotton bollworm of the present invention, carry out according to the following steps:

[0032] a. According to the law of occurrence of cotton bollworm, first combine with winter irrigation to eliminate overwintering pupae before winter, the pupae of cotton bollworm are mostly in the ground ridge, remove the pupae by shoveling the ridge, destroy its pupa chamber, and reduce its overwintering base;

[0033]b. Plant corn trapping belts in the cotton field according to the size of the plot. After the peak oviposition period of the second generation of cotton bollworms, cut off the trapping belts or spray pesticides to kill some cotton bollworms; c. Adults of the overwintering generation of cotton bollworms are mainly To lay eggs in the wheat field, deploy sexual attractants in a large area in early May to trap or fascinate the overwintering adults, reducing the base of the first generation of cotton bollworms; and the peak ...

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Abstract

An integrated method for ecologically preventing and eliminating ballworm features the integration of the winter irrigation for eliminating its overwintering pupae, planting corn zone as attraction zone after the cotton is sown, applying sexual attractant in large area for capturing them, use of trichogramma as the natural enemy of ballworm, and applying low-poison efficient agricultural chemical.

Description

technical field [0001] The invention relates to an integrated method for ecological control of cotton bollworm. Background technique [0002] Cotton bollworm is distributed in domestic and foreign cotton regions, and is an important pest of cotton in the bud stage. Since 1992, there have been major outbreaks in the Huanghuai Haimian area and the Yanjiang cotton area, causing huge economic losses, and the cotton planting area has dropped significantly. For decades, the control of cotton bollworm has mainly relied on chemical pesticides, resulting in a series of serious economic and ecological problems. Biological control is mostly based on a single technology, such as only using sex attractant, virus insecticide or Trichogramma, the control effect is not good, which affects the application of biological control technology. Since the serious outbreak of cotton bollworm in the reclamation area in 1995, the occurrence area has gradually expanded, and the p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G13/00
Inventor 田长彦王林霞吕昭智胡明芳马英杰
Owner XINJIANG INST OF ECOLOGY & GEOGRAPHY CHINESE ACAD OF SCI