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전신재,이준기,이준호,김건혁,김삼규 강원대학교 농업생명과학연구원 2020 강원 농업생명환경연구 Vol.32 No.3
Thrips are among the most important pests of asparagus. The most effective method to control this pest is to regularly apply insecticides. A total of 152 pesticides have been registered for the control of asparagus pests. However, asparagus are harvested on a daily basis, and the application of insecticides to control thrips during harvest season is not ideal due to the residual effect of the insecticide used. In this study, the efficacy of dish detergent was tested against onion thrips, a major pest of fresh asparagus in Gangwon province, South Korea. The detergent treatment showed that 82% and 93% of onion thrips were controlled (i.e., were either killed or expelled from the spear) by the detergent treatment at both low temperature (4°C) and room temperature (22°C), compared to 30.2% and 52.5% by the control water treatment, respectively. Nonetheless, though detergent can be used to control thrips in asparagus, approximately 8 dead thrips remained in the asparagus spear heads. Thus, thorough washing using water with high pressure is recommended to remove dead thrips from the asparagus spear heads.
전신재,허수정,박기진,이원경,김경원,이재희,엄남용 강원대학교 농업생명과학연구원 2019 강원 농업생명환경연구 Vol.31 No.3
This study was conducted to analyze the soil chemical properties of asparagus farmers and to establish future soil management standards. The average soil chemistry of asparagus farms are pH 6.1, EC 3.7 dS/m-1, OM 40.5 g/kg-1, effective phosphate 1,118 mg/kg-1, calcium 10.7 cmol+/kg-1, potassium 2.4, and magnesium 3.2. Overall, the content of EC, OM, phosphoric acid and substituting cations in the soil were high, and the pH was in the proper range. There was a big difference in soil chemistry by region. These differences were attributed to soil characteristics, methods, and year of cultivation. Especially in Dangiin, soil EC was high at 12.6 dS/m-1. It was judged that this was due to the continuous application of compost and cultivation of livestock manure liquid fertilizer with the cultivation year of more than 8 years.