Desaeger J A, Csinos A S
University of Georgia, Department of Plant Pathology, Coastal Plain Experiment Station, Tifton, GA 31793-0748.
J Nematol. 2006 Mar;38(1):59-67.
Combination treatments of chisel-injected fumigants (methyl bromide, 1,3-D, metam sodium, and chloropicrin) on a first crop, followed by drip-applied fumigants (metam sodium and 1,3-D +/- chloropicrin) on a second crop, with and without oxamyl drip applications were evaluated for control of Meloidogyne incognita in three different tests (2002 to 2004) in Tifton, GA. First crops were eggplant or tomato, and second crops were cantaloupe, squash, or jalapeno pepper. Double-cropped vegetables suffered much greater root-knot nematode (RKN) pressure than first crops, and almost-total yield loss occurred when second crops received no nematicide treatment. On a first crop of eggplant, all fumigants provided good nematode control and average yield increases of 10% to 15 %. On second crops, higher application rates and fumigant combinations (metam sodium and 1,3-D +/- chloropicrin) improved RKN control and increased yields on average by 20% to 35 % compared to the nonfumigated control. Oxamyl increased yields of the first crop in 2003 on average by 10% to 15% but had no effect in 2004 when RKN failed to establish itself. On double-cropped squash in 2003, oxamyl following fumigation provided significant additional reduction in nematode infection and increased squash yields on average by 30% to 75%.
在佐治亚州蒂夫顿进行的三项不同试验（2002年至2004年）中，评估了在第一季作物上凿施熏蒸剂（溴甲烷、1,3 - 二氯丙烯、威百亩和氯化苦），随后在第二季作物上滴施熏蒸剂（威百亩和1,3 - 二氯丙烯±氯化苦），以及有无滴施杀线威对南方根结线虫的防治效果。第一季作物为茄子或番茄，第二季作物为哈密瓜、南瓜或墨西哥胡椒。复种蔬菜遭受的根结线虫压力比第一季作物大得多，当第二季作物不进行杀线虫剂处理时，几乎会导致总产量损失。在第一季茄子作物上，所有熏蒸剂对线虫都有良好的防治效果，平均产量提高10%至15%。在第二季作物上，与未熏蒸对照相比，更高的施用量和熏蒸剂组合（威百亩和1,3 - 二氯丙烯±氯化苦）改善了根结线虫的防治效果，平均产量提高了20%至35%。杀线威在2003年使第一季作物的产量平均提高了10%至15%，但在2004年根结线虫未定殖时没有效果。在2003年复种的南瓜上，熏蒸后使用杀线威显著进一步减少了线虫感染，南瓜产量平均提高了30%至75%。
