ECOLOGICAL STUDY ON THREE MAJOR INSECT PESTS OF TOMATO PLANTATIONS IN FAYOUM GOVERNORATE. | ||
| Fayoum Journal of Agricultural Research and Development | ||
| Article 1, Volume 29, Issue 2, July 2015, Pages 1-16 PDF (749.75 K) | ||
| Document Type: Research articles. | ||
| DOI: 10.21608/fjard.2015.193014 | ||
| Author | ||
| Narmen A. Youssef | ||
| DEPARTMENT OF PLANT PROTECTION, FACULTY OF AGRICULTURE, FAYOUM UNIVERSITY, FAYOUM, EGYPT | ||
| Abstract | ||
| Tuta absoluta (Meyrick), Nesidiocoris tenuis (Reuter) and Bemisia tabaci (Genn.) activities on tomato plants at Fayoum Governorate were evident during (nili and summer 2011/2012 & 2012/2013). The highest number of immature stages (larvae) of T.absuluta occurred in November & December 2011 and 2012 (37 and 25 indiv./10 leaves) respectively during nili plantation , while the numbers of this insect were decreased during the summer plantation 2012 , the highest number recorded on June (20 indiv./10 leaves). There was highly significant correlation between the T.absuluta population and mean temp. during nili plantation 2011 . On the other hand, the highest populations of B. tabaci (97 and 70 indiv./10 leaves) was recorded in 2nd and 4th week of Oct. during (nili 2011/2012) and (81 and 64 nymphs/10 leaves) in 2nd week of June and July (summer 2012/2013), respectively. For N. tenuis, the highest number (47 ; 39; 50 and 39 individuals/10 leaves) occurred during 1st and 2nd week of October during nili 2011 & 2012 and 2nd week of June, 1st week of July during summer 2012/2013, respectively. Also, six species of predators were recorded in association with tomato plants, Orius sp < /span>., Chrysopa vulgaris ,Syrphus corella, Coccinella undecimpunctata, Mantis religiosa and Paedrus alfierii. | ||
| Keywords | ||
| Ecology Studies; Tuta absoluta; Nesidiocoris tenuis; Bemisia tabaci; Tomato | ||
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