Quad
depends on environmental conditions. Always consult a Koppert advisor or a recognized distributor of Koppert products for advice on the best strategy for your [...] four large bumblebee colonies) are developed for open-field crops, blossoming in spring. Crops Stone fruits, pome fruits, strawberry, blueberry. Mode of action [...] time collecting pollen to feed the brood. More workers emerge from the brood in the weeks after the introduction, increasing both colony size and pollination