EFFECTS OF D-D AND OXAMYL USED ALONE AND IN COMBINATION ON TOMATO PRODUCTION AND THE VERTICAL DISTRIBUTION OF ROOT-KNOT NEMATODE EM GREENHOUSE SOIL

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Abstract
A combined treatment of D-D plus two foliar applications of oxamyl did not increase the depth or duration of control of Meloidogyne incognita in greenhouse soil even though it did reduce the root-gall index in both spring and fall crops and increase the number and average weight of fruit in the fall crop over that obtained using D-D alone. Oxamyl-only treatments failed to increase tomato production, in the spring crop, over that obtained in the check although the root-gall indices were reduced. In the fall crop, only the oxamyl drench treatment reduced the root-gall index, while both the drench and foliar treatments increased tomato production over the check, the drench treatment being superior.

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