钟天宏 黄铮 许铮 韦代杰 郑之文 许立明

摘要：【目的】调查30%炔端特微囊悬浮剂防治沃柑红蜘蛛的药害情况。【方法】分为预实验和正式实验两个阶段进行红蜘蛛防治的药效试验，预实验分为4个实验组，正式实验分为15个实验组。试验设置在沃柑夏梢生长和幼果生长期的5-6月，通过单独采用30%炔端特微囊悬浮剂的不同浓度进行试验以及与其他不同的螺端酯、寡糖·叱唑酯、高氯·啶虫胖等药剂进行混合使用进行试验，并通过观察幼果、嫩梢、未老熟叶片、老熟叶片的药害情况。【结果】预实验和正式实验的结果都表明在夏季气温不是很高的条件下，30%炔端特微囊悬浮剂单独喷施或与其他药剂混配，对沃柑老叶、嫩梢、嫩叶和幼果是安全的。【结论】气温不是很高的条件下，30%炔端特微囊悬浮剂可以安全防治沃柑红蜘蛛。关键词：炔端特;沃柑;红蜘蛛;药害实验

中图分类号：s436.66文献标识号：A文章编号：1003-4374（2021）05-0021-04

Efficacy Test of 30% Propargite Microcapsule suspension Agent for Red spider Control in 0rah  Mandarin

Zhong Tian-hong1，Huang Zheng2，xu Zheng3，Wei Dai-jie4*，Zheng Zhi-wen4，xu Li-ming5

（1.Guangxi Baizhihe Agricultural Development Co.，Ltd，Nanning，Guangxi 530000，China;

2.Hechi College，Hechi，Guangxi 546300，China;3. Nanning Customs Technology Center，Nanning，

Guangxi 530015，China; 4. Guangxi Hechi Agricultural school，Hechi，Guangxi 546300，China：

5.Guangxi Agricultural Extension station，Nanning，Guangxi 530022，China）

Abstract：【0bjective】To investigate the effects of 30% propargite microcapsule suspension agent for red spider control in 0rah mandarin.   【Method】The efficacy test of red spider control was carried out in two stages： pre -experiment and formal experiment. The pre -experiment was divided into 4 experimental groups，and the formal experiment was divided into 15 experimental groups. The experiment was set in May and June during the summer shoot growth and young fruit growth period of 0rah mandarin. The experiment  was  carried  out  by  spraying  different  concentrations  of  30%  propargite  microcapsule suspension agent alone or mixed with different agents such as spirodiclofen and oligosaccharide. pyrazole ester，chloropyridine，etc.，and conducted contrastive analysis of efficacy test by observing the young fruit，tender shoot，immature ripe leaves，old ripe leaves.【Result】The results of pre -experiment and formal experiment showed that 30% propargite microcapsule suspension agent sprayed alone or mixed with other agents was safe for the old leaves，tender shoots，tender leaves and young fruits of walter mandarin under the condition of low temperature in summer.    【Conclusion】Under the condition of temperature is not very high，30% propargite microcapsule suspension agent can safely control the red spider.

Key words： propargite，walter mandarin，red spider，efficacy test

沃柑生長迅速、进人结果期早、产量高、果实品质好。目前，广西沃柑种植面积已经超过13万公顷。沃柑属杂交柑，由"坦普尔"橘橙与"丹西"红橘杂交选育而成，容易高感溃疡病。由于防控柑橘溃疡病的主流药剂是铜剂，频繁地使用铜剂，易诱发柑橘红蜘蛛为害。柑橘红蜘蛛个体小、数量多、一年繁殖30代以上，已成为沃柑的主要虫害，很多沃柑果园一年光是防控红蜘蛛的用药次数就高达20次以上，给防控红蜘蛛的轮换用药带来难题。

炔螨特是防治红蜘蛛的主要药剂之一，其作用机理是抑制害螨线粒体ATP酶活性，从而打乱害螨正常的呼吸及代谢，使害螨因缺乏体内作功的能量而停止进食，瘫痪而死亡。……