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Factors Affecting Dodder Control with Granular CIPC

Published online by Cambridge University Press:  12 June 2017

J. H. Dawson
J. H. Dawson*
Affiliation:
Crops Research Division, Agricultural Research Service, U. S. Department of Agriculture, Irrigated Agriculture Research and Extension Center, Prosser, Washington
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Abstract

In the greenhouse, 20% granular isopropyl N-(3-chlorophenyl) carbamate (CIPC) at 6 lb/A provided 100% dodder control for 3 to 6 weeks. In the field, 95 to 100% control persisted beyond the expected soil life of CIPC because shade from the crop plants inhibited dodder development and dry soil reduced dodder germination. Effective control required uniform distribution on the soil before the dodder was wrapped on the host plant. CIPC was most effective when applied on the soil surface; incorporation ½, 1½, or 3 in deep reduced its effectiveness. It controlled dodder well if applied to moist soil but was less effective when the soil surface was dry. Partial shade from the crop at the time of application increased the effectiveness of CIPC. Under certain undefined conditions, CIPC applied to the soil injured attached dodder. However, it was consistently effective only on dodder seedlings before attachment.

Information

Type
Research Article
Information
Weeds , Volume 14 , Issue 3 , July 1966 , pp. 255 - 259
Copyright
Copyright © 1966 Weed Science Society of America 

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References

Literature Cited

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