Altosid Pro-G Mosquito Larvicide Zoecon Mosquitoes by zoeconBrand: ZOECON Features: Methoprene 1. 5% Non Crop Areas: Altosid Pro G may be applied as directed above to temporary and permanent sites which support mosquito larval development. Examples of such sites include: snow pools, salt and tidal marshes, freshwater swamps and marshes (cattail, red cedar, white maple marshes), woodland pools and meadows, dredging spoil sites, drainage areas, ditches, wastewater treatment facilities, livestock runoff lagoons,