A field trial was conducted at the Institute of Forage Crops (Pleven. Bulgaria) from 2015 to 2017. It studied the effects of natural products on Acyrthosiphon pisum density. as well as changes in the chemical composition. https://www.bekindtopets.com/limited-buy-TruCan-B-Oral-Bordatella-Vaccine-25-Single-Doses-top-mega/