{"id":1586,"date":"2018-09-30T07:56:24","date_gmt":"2018-09-30T07:56:24","guid":{"rendered":"http:\/\/agri-research-journal.net\/SjarEn\/?p=1586"},"modified":"2018-09-30T09:29:58","modified_gmt":"2018-09-30T09:29:58","slug":"the-efficacy-of-some-plant-extracts-pesticides-and-natural-enemies-in-controlling-of-tetranychus-urticae-koch-populations-on-the-greenhouse-tomato","status":"publish","type":"post","link":"https:\/\/agri-research-journal.net\/SjarEn\/?p=1586","title":{"rendered":"

The Efficacy of Some Plant Extracts, Pesticides and Natural Enemies in Controlling of Tetranychus urticae<\/em> Koch Populations on the Greenhouse Tomato<\/p>"},"content":{"rendered":"

Ibraheem Aziz Sakr(1)<\/sup>, Mageda Muhammad Mufleh(2)<\/sup>, Randa Ahmad Suliman*(1)<\/sup><\/span><\/strong><\/p>\n

(1). Department of Plant Protection, Faculty of Agriculture, Tishreen University, Latakia, Syria.<\/span>
\n(2). General Commission for Scientific Agricultural Research, Damascus, Syria.<\/span><\/p>\n

(*Corresponding author: Eng. Randa Ahmad Suliman. E-Mail: randasuliman65@gmail.com).<\/span><\/p>\n

Received: 28\/12\/2017\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Accepted: 10\/04\/2018<\/span><\/p>\n

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

This study was conducted in order to evaluate the efficacy of the aqueous extracts of three plants (Melia azedarach<\/em> L., Smilax asepra<\/em> L. and Styrax officinalis<\/em> L.), three pesticides (acetamiprid, abamectin and pyridaben) and releasing of two predators (Phytoseiuls persimilis<\/em> Athias\u2013Henriot and Stethorus gilvifrons<\/em> Mulsant) in controlling of Tetranychus urticae<\/em> Koch populations in tomato greenhouse. At 1st week of applications, S.officinalis<\/em> and M.azedarach<\/em> extracts showed a significant efficacy of 64.79 % and 56.45 %, respectively, as well as a decline in the efficacy of the S.aspera<\/em> extract was noticed (35.26%). The killing percentage reached up to 68.95% under the treatment of acaricide, and pyridaben after 24 hours of the treatments and exceeded up to 80 % at the 1st<\/sup> week, simultaneously the abamactin showed high percentage (65.33 % and 78.43 % after 24 hours and 1st<\/sup> week, respectively), while the efficacy of the pesticide acetamiprid was very low and reached the highest record of 37.28 % at the 1st week. The efficacy of the predators P. persimilis<\/em> and S. gilvifrons<\/em> simultaneously increased and controlled T.urticae<\/em> populations three weeks after treatment, and P. persimilis<\/em> showed more efficiency (53.72 % and 58.12% for P. persimilis<\/em> and 35.71 % , 47.11% for S. gilvifrons<\/em>, in the 3rd and the 4th week, respectively). The M. azedarach<\/em> extracts was superior to all plant extracts with a significant difference. The efficacy of the treatments of both the plant extracts and the chemical pesticides reduced significantly in the 2nd<\/sup>, 3rd<\/sup> and 4th<\/sup> weeks, as well as the natural-origin compound abamectin recorded high efficacy with no significant difference with the treatment of the specialized acaricide pyridaben, while there was a significant difference comparing with the other treatments.<\/span>
\nKeywords:<\/strong> Plant extract, Chemical pesticides, Predator release, Tetranychus urticae, Stethorus gilvifrons, Phytoseiulus persimilis.<\/em><\/span><\/p>\n

Full paper in Arabic:<\/strong><\/span>\u00a0PDF<\/strong><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Ibraheem Aziz Sakr(1), Mageda Muhammad Mufleh(2), Randa Ahmad Suliman*(1) (1). Department of Plant Protection, Faculty of Agriculture, Tishreen University, Latakia, Syria. (2). General Commission for Scientific Agricultural Research, Damascus, Syria. (*Corresponding author: Eng. Randa Ahmad Suliman. E-Mail: randasuliman65@gmail.com). Received: 28\/12\/2017\u00a0 … 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":[1],"tags":[],"class_list":["post-1586","post","type-post","status-publish","format-standard","hentry","category-sjar"],"_links":{"self":[{"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=\/wp\/v2\/posts\/1586","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=1586"}],"version-history":[{"count":5,"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=\/wp\/v2\/posts\/1586\/revisions"}],"predecessor-version":[{"id":1611,"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=\/wp\/v2\/posts\/1586\/revisions\/1611"}],"wp:attachment":[{"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1586"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1586"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1586"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}