GAMMA Herbicide 5L – Fast and Efficient Weed Control for Gardens and Farms

GAMMA (Surefire Gamma Herbicide) contains 200 g/L glufosinate-ammonium (Group N), sold in 1L, 5L and 20L packs. The label describes it for the non-residual control of broadleaf and grass weeds in the situations in its directions table: orchards (citrus, pome and stone fruit, olives, tree nuts, tropical fruit with inedible peel), vineyards, berry fruit, nursery stock, cut flowers, inter-row use in strawberries and tomatoes, and commercial and industrial areas, rights-of-way and other non-agricultural areas. Domestic lawns and home gardens are not listed. Signal word: CAUTION.

It will damage plants you want to keep. The label says it will only kill the part of a green plant that the spray contacts, and not to let spray drift onto the foliage of desirable plants, trees or vines, because damage will occur. Do not let it contact green or uncalloused bark (such as on young trees and vines) or cut, cracked or wounded tissue that is not healed. It may be used around desirable trees or vines less than two years old only if they are effectively shielded from spray and spray drift, and the label says to apply as a directed or shielded spray.

How to use it. See the Application Rates tab and our mixing rates guide. The label says visible symptoms appear in 3 to 7 days, but complete desiccation may take 20 to 30 days under cool conditions. Do not apply when rain is expected within 6 hours. Harvest and grazing withholding periods apply to some crops (for example 21 days for pome and stone fruit, 4 weeks for green beans) and the label says not to graze or cut treated areas for stock food for 8 weeks.

Before you buy. The label says it is very toxic to aquatic wildlife: do not contaminate streams, rivers or watercourses with the product or used container. When opening the container, preparing the spray and using the prepared spray, wear cotton overalls buttoned to the neck and wrist (or equivalent clothing), a washable hat, elbow-length PVC or nitrile gloves and a face shield or goggles. Poisons Information Centre: 13 11 26.

Delivery from $17, priced by weight and postcode at checkout.