it is highly likely your plants have been modulated by the attack which has now ceased? Is this because you killed the suspect or did he have his fill and leave in a cyclicle event? You might want to look up Beauveria Bassiana, works great in high humidity, foliar, on, you will get some damage, but whomever bites your plants will quickly develop white muscardine disease. When the microscopic spores of the fungus come into contact with the body of an insect host, they germinate, penetrate the
cuticle, and grow inside, killing the insect within a matter of days. Afterwards, a white mold emerges from the cadaver and produces new spores. A typical isolate of
B. bassiana can attack a broad range of insects; various isolates differ in their host range. The factors responsible for host susceptibility are not known.
Beauveria bassiana parasitizing the
Colorado potato beetle has been reported to be, in turn, the host of a mycoparasitic fungus
Syspastospora parasitica.
[6] This organism also attacks related insect-pathogenic species of the
Clavicipitaceae.