Using insects as weed control agent
Using insects as weed control agent :Insects and herbal pathogens have played a slight role in agricultural systems as biological control factors.
The use of insects as a weed control agent in perennial cultivation is more successful.
Because environmental sustainability in perennial crops enables that some kind of insect can be left in the field with a relatively small number then the population remain in the farm until the abundance of the host plant (weed) reaches the lower level.
This method is low -cost and long -term control (flower control) Hypericum Perforatum, which is a rangeland weed by chrysolina guard – IgeMina.