EFFECTS OF ENVIRONMENTAL FACTORS ON THE POPULATION DYNAMICS OF CHILLI FRUIT BORER AND ITS MANAGEMENT WITH NEWER INSECTICIDE COMBINATIONS AND SOLE INSECTICIDES

被引：0

作者：

Kumar, Deepak ^{[1
]}

Sharma, Kamal Ravi ^{[1
]}

Raju, S. V. S. ^{[1
]}

Babu, S. Ramesh ^{[1
]}

机构：

[1] BHU, Dept Entomol & Agr Zool, Inst Agr Sci, Varanasi 221005, Uttar Pradesh, India

来源：

INTERNATIONAL JOURNAL OF AGRICULTURAL AND STATISTICAL SCIENCES | 2020年 / 16卷 / 01期

关键词：

Chilli; Helicoverpa armigera; Population dynamics; Environmental Factors; Insecticides; Field efficacy;

D O I：

暂无

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

An experiment was conducted to study the population dynamics of Chilli fruit borer and to evaluate the efficacy of newer insecticide combinations and sole insecticides along with untreated control. The chilli fruit borer, Helicoverpa armigera (Hubner) population was first recorded during 41st standard week as 0.14 larvae per plant and peak population (4.02 larvae per plant) was observed during 46th standard week. The correlation analysis revealed that H. armigera population showed significant and negative correlation with relative humidity while the remaining weather parameters like temperature and rainfall were negatively and non-significantly correlated. The data of per cent field efficacy revealed that all insecticidal treatments were significantly superior over untreated control. However, the plots treated with combination insecticide Fipronil 5% + Buprofezin 20% SC @100+400 g a. i./ha recorded the highest per cent field efficacy (76.62%) while, sole insecticide Fipronil 5% SC @ 50 g a. i./ha recorded 52.08 per cent field efficacy.

引用

页码：395 / 400

页数：6