In addition to the damage caused by feeding of the such pest like stalk-borer, there is also the other damage to the foliage due to toxic effect of the saliva injected into the attacked that can cause distortion.
In addition to the damage caused by feeding of the such pest like stalk-borer, there is also the other damage to the foliage due to toxic effect of the saliva injected into the attacked that can cause distortion.