首页> 外文期刊>Journal of Nematology, with Annual of Applied Nematology >Root-Knot Nematode Management in Double-Cropped Plasticulture Vegetables
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Root-Knot Nematode Management in Double-Cropped Plasticulture Vegetables

机译:双季可塑蔬菜的根结线虫管理

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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 muchgreater 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 of10% 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%.
机译:在第一种作物上联合处理凿针熏蒸剂(甲基溴,1,3-D>复方钠和氯仿),然后在第二种作物上进行滴加熏蒸剂(蜜胺钠和1,3-D +氯仿)的组合处理在佐治亚州蒂夫顿的三种不同测试(2002年至2004年)中,评估了使用和不使用草酰胺滴灌法对南方根结线虫的控制效果。第一类作物是茄子或西红柿,第二类作物是哈密瓜,南瓜或墨西哥胡椒。双季种植的蔬菜比第一季作物遭受更大的根结线虫(RKN)压力,当第二季作物未接受杀线虫剂处理时,几乎完全丧失了产量。在第一批茄子上,所有熏蒸剂都能很好地控制线虫,平均产量提高10%至15%。在第二种作物上,较高的施用量和熏蒸剂组合(亚甲酸钠和1,3-D +-氯苦味素)与未熏蒸的对照相比,改善了RKN防治效果,平均单产提高了20%至35%。草酰胺使2003年第一季作物的平均产量提高了10%至15%,但在2004年RKN未能建立自己的作物时,收效不大。在2003年的双季南瓜上,熏蒸后的草胺能进一步显着减少线虫感染,平均将南瓜产量提高30%至75%。

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