Revis Hannah C, Miller Neil W, Vargas Roger I
U.S. Pacific Basin Agricultural Research Center, P.O. Box 4459, Hilo, HI 96720, USA.
J Econ Entomol. 2004 Oct;97(5):1659-65. doi: 10.1603/0022-0493-97.5.1659.
Attractiveness and toxicity of GF-120 Fruit Fly Bait (Dow AgroScience Indianapolis, IN) to melon flies, Bactrocera cucurbitae Coquillett, were examined to assess the effects of concentration and aging. We tested dilutions of 20, 40, and 80 ppm (AI) (spinosad) against water controls. The 80 and 40 ppm treatments were significantly more attractive than the 20 ppm and control treatments. Attraction was compared between baits aged for 2 and 24 h, fresh bait and water controls. Age had significant effects on both attractiveness and toxicity of GF-120. Baits aged for 2 h were 11 times less attractive to female melon flies than fresh bait. Mortality rates were reduced by 50% when GF-120 was subjected to rain. Our results suggest the need for frequent applications of GF-120 to obtain maximum benefits, particularly in wet tropical climates.
对GF - 120果蝇诱饵（陶氏益农公司，印第安纳波利斯，印第安纳州）对瓜实蝇（Bactrocera cucurbitae Coquillett）的吸引力和毒性进行了研究，以评估浓度和老化的影响。我们测试了20、40和80 ppm（有效成分）（多杀菌素）的稀释液与水对照。80 ppm和40 ppm处理比20 ppm处理和对照处理的吸引力显著更高。比较了老化2小时和24小时的诱饵、新鲜诱饵和水对照之间的吸引力。老化对GF - 120的吸引力和毒性都有显著影响。老化2小时的诱饵对雌性瓜实蝇的吸引力比新鲜诱饵低11倍。当GF - 120遭遇降雨时，死亡率降低了50%。我们的结果表明，需要频繁施用GF - 120以获得最大效益，特别是在潮湿的热带气候中。
