Korean Journal of Organic Agriculture (한국유기농업학회지)

Korean Association of Organic Agriculture (한국유기농업학회)
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Treatment Interval of Neem Product for Control of Bemisia tabaci on Eggplant using Eco-friendly Agriculture

Neem제 처리간격이 가지 담배가루이 방제에 미치는 효과

  • Received : 2016.09.05
  • Accepted : 2016.09.28
  • Published : 2016.11.30
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Abstract

This experiment was carried out to determine the treatment interval on neem product for control of Bemisia tabaci on eggplant using eco-friendly agriculture. We have investigated the control effect of B. tabaci, growth characteristics of eggplant, economics according to neem product treatment interval on eggplant. The longer neem processing interval tended to decrease control effect on nymphs of B. tabaci. Control effect of nymph of B. tabaci according to treatment interval of 3 days, 5 days, 7 days, 10 days, and 15 days were 96.7%, 89.7%, 76.1%, 73.4%, and 51.0%, respectively. This result was the same tendency in adult of B. tabaci control effects on eggplant. Growth characteristics of eggplant according to neem the treatment interval of 3 days, 5 days, and 7 days, was less damaged on of B. tabaci. However, the 10 days, 15 days, and untreated of neem treatment intervals were badly damaged by B. tabaci. Therefore, neem treatment interval of 3~7 days for control of B. tabaci was high control effect. However, it is considered to be the most suitable to process every seven days considering the economics and so on. The results of economic analysis from income of 7 days neem treatment interval was the most high as 19.505 thousand won per 10a and the most economical treatment for control of B. tabaci.

가지 담배가루이 친환경 방제를 위한 neem제 처리 간격을 구명하고자, 500배 농도로 처리 간격(일)을 3~15까지 5처리를 두어 neem제의 담배가루이에 대한 처리효과, neem제 처리 간격에 따른 생육상황 및 경제성 등을 분석하였다. neem제의 담배가루이에 대한 처리효과는 약충의 경우 3일, 5일, 7일, 10일, 15일 간격에서 방제가가 각각 96.7%, 89.7%, 76.1%, 73.4%, 51.0%로 neem제 처리간격이 길어질수록 담배가루이 약충의 방제가는 낮아지는 경향이었다, 성충의 경우는 3, 5, 7, 10, 15일 간격 처리에서 각각 1.2, 1.8, 2.3, 2.8, 5.4마리였고, 방제가는 각각 82.3%, 73.5%, 66.2%, 58.8%, 20.6%를 보였다. neem제 처리간격에 따른 가지의 생육상황은 3일, 5일, 7일 간격으로 처리한 잎에서는 담배가루이의 피해가 크지 않았으나, 10일, 15일 간격 처리와 무처리에서는 담배가루이에 의한 피해가 심하게 나타났다. 따라서 담배가루이 방제를 위하여 neem제를 3일 간격으로 처리하는 것이 방제효과가 높으나 경제성 분석결과, 소득은 neem제 7일 간격 처리가 10 a당 19,505천원으로 가장 많아 담배가루이 방제를 위한 neem제 처리 간격은 7일이 가장 적당할 것으로 판단된다.

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