Peanut borer

Picture of a plant suffering from peanut borer

The scientific name: Caryedon serratus

Symptoms

. Symptoms of the disease appear in the form of small holes in the bean pods dug by the larvae that begin to eat the seeds. There are also large holes in the bean pods dug by large beetles. Likewise, insects can attack the pods in the field and in storage places.

The appearance of larvae from holes is the initial evidence of infestation, with cocoons outside the bean pods. There is usually no obvious damage to the seeds when the infected pods are divided.

Peanut borer - the world of plants

Preventative measurements

Plant resistant varieties such as CMV10, GG3 and other types that are less preferred by brochids. You can also reduce secondary pest attacks by sorting and disposing of broken or damaged seeds.

Also, avoid piling the crop in the same field, and harvest peanuts at the correct stage of maturity. Reduce the moisture of peanut seeds by solarizing the crop to a safe level, usually less than 10% humidity, to reduce the spread of the infestation from one field to another. Finally, clean and fumigate the storage areas.

Cause of disease

The damage is caused by the larvae of the adult brown beetle (Sawtail beetles). It lays eggs (small and transparent) on the outside of the horn, and after hatching, the small larvae burrow directly into the horn through the egg.

It feeds on the plants in the nucleus until they mature, and then the adult beetle makes a large hole in the horn. The adult beetle is oval in shape and brown in color and is usually about 7 mm long. Under ideal conditions, beetles take about 40-42 days to complete their life cycle, and their development thrives at temperatures between 30-33 degrees Celsius.

Peanut borer - the world of plants

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