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首页> 外文学位 >A laboratory behavioral assessment on predatory potential of the green lacewing Mallada basalis Walker (Neuroptera: Chrysopidae) on two species of papaya pest mites, Tetranychus kanzawai Kishida and Panonychus citri (McGregor) (Acari: Tetranychidae).
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A laboratory behavioral assessment on predatory potential of the green lacewing Mallada basalis Walker (Neuroptera: Chrysopidae) on two species of papaya pest mites, Tetranychus kanzawai Kishida and Panonychus citri (McGregor) (Acari: Tetranychidae).

机译：实验室行为评估的绿色草wingMallada basalis Walker（Neuroptera：Chrysopidae）对两种木瓜害虫，Tetranychus kanzawai Kishida和Panonychus citri（McGregor）（Acari：Tetranychidae）的捕食潜力。

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摘要

Tetranychus kanzawai Kishida and Panonychus citri (McGregor) are the two major arachnid pests of screenhouse-cultivated papayas in Taiwan. Control of these mites has become more difficult because both pests have become resistant to most registered miticides. This laboratory study investigated the feeding behaviors, predatory potential, and prey preference of a domesticated line of Mallada basalis Walker, a commonly-occurring chrysopid in Taiwan, to both of these pest mites. A laboratory assessment on control efficacies of different predator:prey release ratios to single and mixed-pest species was also conducted. Behavioral study showed that all larval stages of M. basalis exhibited a high rate of acceptance of all life stages of both T. kanzawai and P. citri . Second and third instar predators foraged actively during most of the 2-h tests. Numbers and rates of prey consumption were measured for each instar of predator and prey. Results showed that consumption increased and prey handling time decreased as predator life stage advanced, and prey stage decreased. Mallada basalis exhibited both a shorter handling time and corresponding higher consumption rate on P. citri compared with T. kanzawai. Handling time and consumption rate also were positively affected by increasing prey density. Mallada basalis did not exhibit notable species or life stage preferences, and prior feeding experience on one mite species did not affect subsequent prey choice between the two mites. Lacewings significantly reduced T. kanzawai and P. citri populations at a predator:prey ratio of 1:30 and this improved at ratios of 1:15 and 1:10. Control of T. kanzawai was slightly better than P. citri when the mites occurred singly and together. Consumption by M. basalis increased with temperature up to 30°C. I conclude that M. basalis has high potential for augmentative biological control of papaya mites. Further field investigations are needed for making final recommendations.
机译：斑叶Tetranychus kanzawai Kishida和Panonychus citri（McGregor）是台湾经过筛选的木瓜栽培的两种主要蜘蛛网虫。控制这些螨虫变得更加困难，因为两种害虫都已对大多数已注册的杀螨剂产生了抗药性。这项实验室研究调查了台湾常见的温石pidMallada basalis Walker驯化品系对这两种害虫的摄食行为，捕食潜力和猎物偏好。还进行了实验室评估，以评估不同捕食者：猎物释放比率对单一和混合害虫物种的控制效率。行为学研究表明，基底支原体的所有幼虫阶段对甘寒T和柠檬柑的所有生命阶段的接受率均高。在2小时的大多数测试中，第二和第三龄捕食者均积极觅食。测量了每龄捕食者和猎物的猎物消耗数量和比率。结果表明，随着捕食者生命周期的延长，消耗量增加，猎物处理时间减少，猎物阶段减少。相较于T. kanzawai，Mallada basalis表现出较短的处理时间和相应的较高食用率。处理时间和消耗率也受到猎物密度增加的积极影响。 Mallada basalis并没有表现出明显的物种或生命周期偏好，并且先前对一种螨虫的摄食经验不会影响随后在两种螨虫之间进行的猎物选择。草ce以1:30的捕食者：被捕食者比率大大减少了T. kanzawai和P. citri种群，并且以1:15和1:10的比率改善了。当螨单独或一起发生时，对甘草T. Kanzawai的控制稍好于柠檬P. citri。高达30°C的温度下，基础支原体的消费量增加。我得出的结论是，M。basalis对木瓜螨有增强的生物防治潜力。为了做出最终建议，还需要进行进一步的现场调查。

著录项

  • 作者

    Cheng, Ling-lan.;

  • 作者单位

    Kansas State University.;

  • 授予单位 Kansas State University.;
  • 学科 Biology Entomology.
  • 学位 Ph.D.
  • 年度 2007
  • 页码 145 p.
  • 总页数 145
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 昆虫学;
  • 关键词

  • 入库时间 2022-08-17 11:39:15

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