Pink stem borer, also known as Sesamia inferens, is a serious pest of wheat that can cause significant yield losses if not controlled properly. This pest primarily attacks the stem of the wheat plant, cutting off the flow of nutrients and water to the developing grain heads. In this article, we provide information on the control of pink stem borer wheat to help farmers prevent infestations and protect their crops.
Identification of Pink Stem Borer Wheat
Pink stem borer is a small, slender, and grayish-brown moth with a wingspan of about 2 to 3 cm. The larvae, which are the destructive stage of the pest, are yellowish-white and have a pinkish tinge on their head and thorax. They bore into the wheat stems, causing stem breakage, reduced grain quality, and yield losses.
Control measures for Pink Stem Borer Wheat
1. Cultural Practices
One of the most effective ways to control pink stem borer is through the adoption of cultural practices. Farmers should aim to plant early, as early-planted wheat tends to be less affected by pests. They should also avoid continuous wheat cropping, which increases the buildup of pests, including pink stem borer. Crop rotation with non-host crops, like legumes, can help break the pest’s lifecycle.
2. Chemical Control
Chemical control is another effective method to control pink stem borer. Insecticides should be applied when the moth population is at its peak stage. Farmers should use insecticides with a systemic action as it ensures a long-lasting control. Farmers should follow the manufacturer’s instructions when applying insecticides so as not to contaminate the environment.
3. Biological Control
Biological control can also be used to manage pink stem borer populations. Farmers should avoid using insecticides that may harm natural parasite populations. Parasites like Trichogrammatids and Braconids can be used to control pink stem borer populations.
4. Physical Control
Physical control of pink stem borer involves the removal and destruction of infested stems. This method is suitable for small plots and early stage pest infestation. Cutting off the stems two to three inches below the level of infestation is recommended to prevent the insect’s survival.
In conclusion, pink stem borer is a devastating pest that can cause significant losses to wheat crops. Farmers should employ proper management practices to control the pest’s population. The adoption of cultural practices, chemical control, biological control, and physical control methods can significantly reduce pest populations. By taking appropriate control measures, farmers can protect their wheat crops from the damaging effects of pink stem borer.