To overcome this problem, sucking mechanism of the machine was modified with the help of five different adopters and each of them was tested with promising results at successive growth stages of cotton, sugarcane and some vegetable crops. Later on, this device was mounted on a wheelbarrow, which could not function properly due to uneven surface in the crop fields. The detachable Pneumatic Insect Killer mounted on wheels can also be used as backpack for insect pest control operations on small scale.