NON-FUMIGANT NEMATICIDES FOR CONTROL OF ROOT-KNOT NEMATODE TO PROTECT CARROT ROOT-GROWTH IN ORGANIC SOILS
- 1 January 1979
- journal article
- research article
- Vol. 11 (4) , 328-333
Abstract
Greenhouse tests were conducted to determine the effects of 2 kinds of Meloidogyne hapla inoculum on the growth and quality of carrot roots, and the protection afforded in each case by nonfumigant nematocides in organic soils. For all treatments the percentage of carrots damaged was greater with larvae alone as inoculum than with larvae and eggs, indicating that most of the damage occurs early during formation of the taproot. Fosthietan, aldicarb and oxamyl at 4 and 6 kg ai[active ingredient]/ha protected the roots during formation and gave a lasting control of root-knot nematode. There was some nematode damage to the roots with phenamiphos and carbofuran at 4 and 6 kg ai/ha. Isazophos, diflubenzuron and fenvalerate gave little protection to carrot roots and did not control root-knot nematode effectively.Keywords
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