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Pesticide and method for preventing and killing caprella scaura adhered to cultivated asparagus

A technology for wheat straw worms and asparagus, applied in botanical equipment and methods, biocides, animal repellents, etc. Mastery, low-cost effects

Inactive Publication Date: 2014-11-05
YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Most feed on zooplankton and plants, and often feed on the branches and leaves of algae seedlings. When the number is large, the seedlings will be incomplete and affect the growth and development of the seedlings.

Method used

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  • Pesticide and method for preventing and killing caprella scaura adhered to cultivated asparagus
  • Pesticide and method for preventing and killing caprella scaura adhered to cultivated asparagus
  • Pesticide and method for preventing and killing caprella scaura adhered to cultivated asparagus

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Embodiment Construction

[0024] The following specific embodiments will further describe the present invention in detail.

[0025] (1) Implementation method

[0026] From August 2012 to September 2012, experiments were carried out in the algae breeding area of ​​Ellen Bay, Rongcheng, Shandong. The straw worms were collected from the asparagus breeding area of ​​Ellen Bay Xunshan Group Co., Ltd. In the laboratory, it was mixed with asparagus in seawater with a temperature of 22±0.5°C, a pH of 8.03±0.01, and a salinity of 31±0.5‰ for 7 days.

[0027] The chemical fertilizer ammonium sulfate (purchased from Yatou Town, Rongcheng City, Shandong Province) with a total nitrogen content ≥ 21.0% was used to make a liquid medicine, and 10 treatment groups were set up. The concentration of the medicine (g / L) was: 0.5, 0.6, 0.7, 0.8 , 0.9, 1.0, 2.0, 3.0, 4.0, 5.0, each treatment group set 3 replicates. The experimental seawater was filtered through a 0.45 μm filter membrane for later use. The salinity was 31±...

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Abstract

The invention provides a pesticide for preventing and killing caprella scaura adhered to cultivated asparagus. A chemical fertilizer of an ammonium sulfate solution is used as the pesticide, filtered seawater is used as a solvent, ammonium sulfate is used as a solute, and the concentration of the solute is 0.5-5.0g / L. A method for preventing and killing the caprella scaura adhered to the cultivated asparagus by using the pesticide comprises the following steps of: (1) preparing the chemical fertilizer of ammonium sulfate into a solution with the concentration of 0.5-5.0g / L by using the filtered seawater; and (2) respectively placing liquid medicines with different concentrations in a sorting box, then respectively soaking the asparagus adhered with the caprella scaura in the sorting box filled with the liquid medicines with different concentrations for 5-15 minutes. A soaking method is used in the method for preventing and killing the caprella scaura adhered to the cultivated asparagus, the ammonium sulfate solution with high concentration is used as the pesticide to interfere with the normal growth and survival of the caprella scaura, the pesticide has excellent effects on falling and death of the caprella scaura adhered to the asparagus, thus the caprella scaura is effectively prevented and killed so as to improve the growth and the yield of the cultivated asparagus.

Description

technical field [0001] The invention belongs to the technical field of medicines, and in particular relates to a medicine and a method for preventing and eliminating straw insects attached to cultivated asparagus. Background technique [0002] Asparagus (G.sjoestedtii Kylin) is a kind of temperate red algae. Its gelatin content is the one that is currently known to be able to grow Gracilaria in terms of gel yield and quality. It is the best choice for extracting agar. Excellent raw material. During the kelp harvesting period in the northern seas, 3 crops of asparagus can be cultivated and harvested, which not only avoids idle breeding waters, doubles economic benefits, but also improves water quality and prevents eutrophication of water bodies. More importantly, fresh kelp can be harvested in northern summer When it is insufficient, asparagus can become a high-quality feed for abalone (Haliotis sp.), and an important feed guarantee for the stable and rapid development of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N59/02A01P7/00
CPCY02A50/30
Inventor 张继红巍伟姚永锋方建光
Owner YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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