Chemical name | Example trade name |
---|---|
Amides | |
Metalochor | Dual Gold® |
Pyroxafulfone | Sakura® |
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This pre-emergent herbicide group is used to control annual grasses and broadleaf weeds. It is applied to the soil either before or directly after sowing and prior to weed emergence. Symptoms appear as the crop emerges. In most cases weeds do not appear.
Chemical name | Example trade name |
---|---|
Amides | |
Metalochor | Dual Gold® |
Pyroxafulfone | Sakura® |
Condition | Similarities | Differences |
---|---|---|
Diagnosing groups D J herbicide damage in cereals | Variable emergence, weak seedlings. | Group K herbicide damaged plants do not have thickened coleoptiles or stubby thickened roots. |
Diagnosing poor seed-soil contact in crops | Variable emergence, weak seedlings. | Poor seed-soil contact is more common in dense stubble and on heavy or very cloddy soil. |
Diagnosing allelopathy in cereals | Variable emergence, weak seedlings. | Silly seedling plants remain spindly and have weak thin roots. |
Diagnosing group C herbicide damage in cereals | Seedling death may occur in rows and on sandy, low organic matter soils. | Group C herbicide damaged plants bleach and die back from oldest leaves. Leaves may also have interveinal chlorosis. |