{"id":2515,"date":"2020-06-27T04:03:38","date_gmt":"2020-06-27T04:03:38","guid":{"rendered":"http:\/\/agri-research-journal.net\/SjarEn\/?p=2515"},"modified":"2020-06-27T04:03:38","modified_gmt":"2020-06-27T04:03:38","slug":"impact-of-certain-insecticides-against-pink-bollworm-%e2%80%8epectinophora-gossypiella-sucking-pests-and-their-associated-%e2%80%8epredators-in-cotton-fields","status":"publish","type":"post","link":"https:\/\/agri-research-journal.net\/SjarEn\/?p=2515","title":{"rendered":"Impact of Certain Insecticides Against Pink Bollworm \u200ePectinophora gossypiella, Sucking Pests, and Their Associated \u200ePredators in Cotton Fields"},"content":{"rendered":"\n

Mohammed\nE. M. A. Hegab*(1)<\/sup> Ahmad A. T. Zaki(1)<\/sup> <\/strong>Ali A.A. El-Sayed(1)<\/sup> a<\/strong>nd Adel\nA. Amer(1)<\/sup><\/strong><\/p>\n\n\n\n

(1). Plant Protection Research Institute,\nAgriculture Research Center, Dokki, Giza, Egypt.<\/p>\n\n\n\n

(*Corresponding author: Dr. Mohammed E. M.\nA. Hegab. E-Mail: drmhegab@yahoo.com<\/a>).  <\/p>\n\n\n\n

Received: 15\/03\/2020                                              Accepted:\n12\/05\/2020<\/p>\n\n\n\n

Abstract<\/strong><\/p>\n\n\n\n

Field\nexperiments were conducted at ALZagazig \nAl-Sharkia  Governorate during\n2017 cotton season to tested some chemical insecticides on the larvae of  Pectinophora gossypiella <\/em>cotton bolls.\nThree insecticides of Chlorpyrifos+Chlorfluazeron then Lambda-Cypermethrin and\nthen Chlorpyrifos) on P. gossypiella,<\/em> certain sucking pests, (Aphis\ngossypii, Bemecia tabaci, Empoasca <\/em>spp., Nezara veridula <\/em>and\nTetranychus<\/em> spp.) and their associated predators, (Coccinella<\/em> spp., Chrysoperla\n<\/em>spp.,<\/em> Peaderus alferii<\/em>, Scymnus<\/em> spp., Orius<\/em>\nspp. and true spiders). The resultes showed that 1st<\/sup> spray was\nmoderately effective on P. gossypiella<\/em> larvae and recorded 67.33 %\nreduction after 2nd<\/sup> week while, the highest reduction was 85.71%\nafter 2nd<\/sup> week of 2nd<\/sup> spray. The seasonal mean of\nreduction was 73.89% after the three sprays. In case of studying the effect of\npesticides used to control pink bollworm and its effect on sucking piercing\npests. Also, data revealed that the 1st<\/sup> spray was the preferable\nspray on Tetranychus<\/em>. spp. and Aphid gossypii<\/em> attained (100 and\n87.79 %), respectively. while in the case of the 2nd<\/sup> spray the\neffect were noticed on A. gossypii<\/em>, Tetranychus<\/em>. spp. and Empoasca\n<\/em>spp.<\/em>, which attained (100, 53.40 and 56.20 % ). While the 3rd<\/sup>\nspray recorded the high mean of reduction percentages on N. veredula<\/em> and\nA. gossypii<\/em> attained (92.15 and 84.16 %). The seasonal mean of reduction\npercentages after the three sprays can be arranged as follows: (90.65, 79.82,\n71.52, 58.56 and 36.49 %) of A. gossypii<\/em>, N. veredula ,Tetranychus<\/em>.\nspp., B. tabaci <\/em>and Empoasca <\/em>spp.<\/em>, respectively.<\/em> On\nthe other hand, the effect of the tested compounds on  Chrysoperla<\/em> spp. were\n53.72, 8.23 and 9.39 % reduction recorded after the three sprays, respectively.\nThe obtained results cleared that the tested predators affected on all sucking\npests population numbers and recorded the lowest seasonal mean 23.78 % which\nrecorded on Chrysoperla<\/em> spp. On the other side there was found a\nrelationship ranged between positive & negative and insignificant between Coccinella<\/em>\nspp. and the sucking pests, and the relationship was positive and significant\nwith Empoasca <\/em>spp. In the case of the Chrysoperla<\/em> spp., the\nrelationship was, and significant with Empoasca <\/em> spp., N. veridula<\/em> and Tetranychus<\/em>\nspp. numbers. Whereas in the case of Scymnus<\/em> spp., the relationship was\npositive or negative and significant in the case of B. tabaci,<\/em> N.\nveridula<\/em> and truespider mites. At the same time, the relationship\nbetween Orius<\/em> spp. beetles and sucking piercing pests ranged between\npositive & negative, significant and insignificant, and that relationship\nwas significant and negative true spiders and insignificant & positive with\nother insect piercing insects. Generally, multiple regressions between the\nsucking pests and predators were 65.19, 72.24, 55.75, 71.45 and 41.56 for (Coccinella<\/em>\nspp., Chrysoperla<\/em> spp.,<\/em> Peaderus alferii<\/em>, Scymnus<\/em>\nspp., Orius<\/em> spp. and true spiders), respectively.  It could be concluded that the treatment of\npink bollo worm using the following pesticide program (Chlorperifos +\nChlorfloiseron and then Lambadacyhalothrin alone and then Chlorperifos alone)\nled to a significant reduction in the number of pink bolloworm, pests\nassociated with this effect were low on insect predators associated with\nperforating sucking insects in cotton fields..<\/p>\n\n\n\n

Key words:<\/strong> Pectinophora\ngossypiella<\/em>, Insecticides, Sucking pests, Predators. <\/p>\n\n\n\n

Full paper in English: PDF<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Mohammed E. M. A. Hegab*(1) Ahmad A. T. Zaki(1) Ali A.A. El-Sayed(1) and Adel A. Amer(1) (1). Plant Protection Research Institute, Agriculture Research Center, Dokki, Giza, Egypt. (*Corresponding author: Dr. Mohammed E. M. A. Hegab. E-Mail: drmhegab@yahoo.com).  Received: 15\/03\/2020                                              … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5,1,1137],"tags":[1139,1140,1138],"class_list":["post-2515","post","type-post","status-publish","format-standard","hentry","category-plant-protection","category-sjar","category-v7n3june-2020","tag-insecticides","tag-pectinophora-gossypiella","tag-sucking-pests"],"_links":{"self":[{"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=\/wp\/v2\/posts\/2515","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2515"}],"version-history":[{"count":1,"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=\/wp\/v2\/posts\/2515\/revisions"}],"predecessor-version":[{"id":2516,"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=\/wp\/v2\/posts\/2515\/revisions\/2516"}],"wp:attachment":[{"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2515"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2515"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2515"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}