EGG STORAGE OF Podisus nigrispinus (HEMIPTERA: PENTATOMIDAE) PREDATORS AT LOW TEMPERATURES

Author:

Costa Victor Hugo Duarte da1,Soares Marcus Alvarenga1,Assis Júnior Sebastião Lourenço de1,Silveira Rodrigo Diniz1,Reis Tatiane Carla1,Pires Evaldo Martins2

Affiliation:

1. Universidade Federal dos Vales do Jequitinhonha e Mucuri, Brazil

2. Universidade Federal de Mato Grosso, Brazil

Abstract

ABSTRACT Podisus nigrispinus are bedbug predators that are used as biological control agents of defoliating larvae in eucalypt plantations. The mass rearing of natural enemies produces large numbers of insects, but the number of predators produced may not coincide with the timing of the outbreaks of pest populations in the field. The aim of this study was to evaluate the effects of different storage periods on the eggs of P. nigrispinus at low temperatures of 5, 13 and 15ºC. The treatments consisted of periods of 5, 10, 15 and 20 days of storage of predator eggs at each temperature indicated. After the different periods of storage, the eggs were removed, and the egg viability, the survival and duration of nymphal instars and the sex ratio of emerged adults were evaluated. Egg storage at 5ºC reduced the percentage of hatched eggs, while viability values close to 50% were observed for storage periods of up to 10 days at 13ºC and up to 15 days at 15ºC. For these treatments, the survival rates of nymphs were similar to those of the control. The different storage periods had no effect on the duration of the nymphal stage or the sex ratio of P. nigrispinus at any of the temperatures. Therefore, the storage temperature of 5ºC caused the death of the majority of the embryos, while it is possible to store P. nigrispinus eggs up to 10 and 15 days at 13 and 15ºC, respectively.

Publisher

FapUNIFESP (SciELO)

Subject

Forestry

Reference31 articles.

1. Possible storage of Conccinella undecimpunctata (Coleoptera: Coccinellidae) under low temperature and its effect on some biological characteristics;ABDEL-SALAM A.H.;Journal of Applied Entomology,2000

2. Regrigerated eggs of Riptortus pedestris (Hemiptera: Alydidae) added to aggregation pheromone traps increase field parasitism in soybean;ALIM M.A.;Journal of Economic Entomology,2011

3. Effect of cold storage on larval and adult Anastrepha ludens (Diptera: Tephritidae) viability in commercially ripe, artificially infested Persea american 'Hass';ALUJA M.;Journal of Economic Entomology,2008

4. Behavioural consequences of cold exposure on males and females of Aphidius rhopalosiphi (De Stephani Perez) (Hymenoptera: Braconidae);BOURDAIS D.;BioControl,2012

5. Cold storage effects on maternal and progeny quality of Gonatocerus ashmeadi Girault (Hymenoptera: Mymaridae);CHEN W.L.;Biological Control,2008

Cited by 12 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3