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Delayed Preemergence Weed Control in Seeded Tomatoes and Peppers

Published online by Cambridge University Press:  12 June 2017

R. B. Taylorson
R. B. Taylorson*
Affiliation:
Crops Research Division, Agricultural Research Service, U. S. Department of Agriculture, Tifton, Georgia
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Abstract and summary

The preemergence herbicide N, N-dimethyl-2, 2-diphenylacetamide (diphenamid) alone and in combination with the contact herbicides 1,1′-dimethyl-4, 4′-bipyridinium salt (paraquat) and 3, 4-dichloropropionanilide (propanil) was studied over three years. Application at planting and crop emergence (delayed preemergence) were compared. Weed control and crop tolerance were equally effective at either stage in tomatoes. Delayed preemergence applications of contact materials alone were erratic as herbicides but were more effective in peppers than in tomatoes. At emergence, combinations were more effective. Selectivity of propanil lessened when the cotyledons of tomato expanded fully.

Type
Research Article
Information
Weeds , Volume 13 , Issue 4 , October 1965 , pp. 306 - 308
Copyright
Copyright © 1965 Weed Science Society of America 

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References

Literature Cited

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