Sorghum is a highly valued crop for its adaptability to grow in a wide range of agro-climatic conditions. However, like other crops, sorghum is also susceptible to various pests that can cause significant damage to the crop and reduce yield. One such damaging pest of sorghum is the sorghum Stem Borer. It affects sorghum crops from seedling to maturity. Warm and humid conditions are particularly favorable for the stem borers.
The life cycle of the sorghum stem borer includes four stages: egg, larva, pupa and adult. The female sorghum stem borer lays eggs on the surface of the sorghum stem. The eggs hatch into small, white larvae that burrow into the sorghum stem and feed on the inner tissue of the stem, causing damage to the plants. After feeding for several weeks, the larvae pupate inside the sorghum stem.
Sorghum Stem Borer infests the stem of the sorghum plant, by feeding the inner tissue of the stem and produces dead heart symptoms. Severe infestation leads to stunted growth and yield loss.
Scientific Name: Chilo partellus
The sorghum stem borer is a major pest in many states of India. The states that are most affected by the pest include Maharashtra, Karnataka, Andhra Pradesh, Telangana, Madhya Pradesh, and Gujarat.
The sorghum stem borer infestation can be identified by the following symptoms:
The management of stem borer on sorghum plants can be achieved through an integrated approach that includes cultural, mechanical, biological and chemical measures.
Sorghum leaf roller can be controlled by using commercial insecticides. Some of the commonly used insecticides for controlling leaf rollers are mentioned below,
Product Name | Technical Content | Dosage |
Coragen Insecticide | Chlorantraniliprole 18.5% SC | 0.4 ml/lit of water |
Alika Insecticide | Thiamethoxam 12.6% + Lambda-cyhalothrin 9.5% ZC | 0.5 ml/lit of water |
Tafgor Insecticide | Dimethoate 30% EC | 1.5 ml/lit of water |
Ekalux Insecticide | Quinalphos 25 % EC | 2 ml/lit of water |
Reeva 5 Insecticide | Lambda Cyhalothrin 5 % EC | 2 ml/lit of water |
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