EFFECT OF LIRIOMYZA-TRIFOLII (DIPTERA, AGROMYZIDAE) LARVAL DAMAGE ON GROWTH, YIELD, AND COSMETIC QUALITY OF CELERY IN FLORIDA
EFFECT OF LIRIOMYZA-TRIFOLII (DIPTERA, AGROMYZIDAE) LARVAL DAMAGE ON GROWTH, YIELD, AND COSMETIC QUALITY OF CELERY IN FLORIDA
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DOI：
10.1093/jee/81.6.1721
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发表时间：
1988-12-01
影响因子：
2.2
通讯作者：
SANCHEZ, CA
中科院分区：
文献类型：
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作者：
FOSTER, RE;SANCHEZ, CA
在佛罗里达州贝尔格莱德附近进行的一项实验。比较了每周施用氯丙嗪与未施用叶螨害的芹菜的生长和产量。在15次种植中，采叶虫对芹菜的生长和产量没有显著影响。我们的数据表明，南佛罗里达的芹菜植株可以忍受大量的叶螨伤害，而不会显著降低生长速度或产量。在另一个试验中，在3个月的生长季节的第1、2和3个月，用氯丙嗪对三叶螨居群进行处理，使芹菜田间地块易受幼虫叶螨的危害。芹菜在第一个月或第二个月暴露在叶虫中，其美容质量与芹菜在整个生长季节每周接受冷冻剂的质量相似。芹菜在上个月暴露于叶蝉的摄食中，其质量损失与未处理的芹菜相似或更大。因此，在佛罗里达，芹菜显然必须在生长季节的最后一个月才受到叶螨的伤害，以防止质量损失。即使上个月的叶螨密度很低，也造成了相当大的质量损失，这表明在这段时间里，要生产出适销对路的芹菜，控制必须非常有效。
An experiment done near Belle Glade, Fla. compared the growth and yield of celery protected from Liriomyza trifolii (Burgess) damage by weekly applications of cyromazine with celery that was unprotected from leafminer damage. In 15 plantings, leafminers had no significant effect on the growth or yield of celery. Our data show that a substantial amount of leafminer damage can be tolerated by celery plants in southern Florida without a significant reduction in growth rate or yield. In another experiment populations of L. trifolii were manipulated with cyromazine so that field plots of celery were made vulnerable to larval leafminer damage during the first, second and third month of the 3-mo growing season. Celery exposed to leafminers during the first or second month had cosmetic quality similar to celery receiving cryomazine applications weekly throughout the growing season. Celery exposed to leafminer feeding during the last month had quality losses similar to or greater than the untreated check. Therefore, celery apparently must be protected from leafminer damage only during the final month of the growing season in Florida to prevent losses in quality. Even low leafminer densities during the last month caused considerable quality loss, indicating that control must be extremely effective during that time to produce a marketable crop of celery.