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Journal of Plant Protection and Pathology
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Solaiman, R. (2015). SURVEY AND POPULATION FLUCTUATIONS OF COMMON INSECT PESTS AND THEIR PREDATORS ON TWO MEDICINAL PLANT SPECIES AT FAYOUM GOVERNORATE, EGYPT.. Journal of Plant Protection and Pathology, 6(12), 1727-1738. doi: 10.21608/jppp.2015.75803
R. H. A. Solaiman. "SURVEY AND POPULATION FLUCTUATIONS OF COMMON INSECT PESTS AND THEIR PREDATORS ON TWO MEDICINAL PLANT SPECIES AT FAYOUM GOVERNORATE, EGYPT.". Journal of Plant Protection and Pathology, 6, 12, 2015, 1727-1738. doi: 10.21608/jppp.2015.75803
Solaiman, R. (2015). 'SURVEY AND POPULATION FLUCTUATIONS OF COMMON INSECT PESTS AND THEIR PREDATORS ON TWO MEDICINAL PLANT SPECIES AT FAYOUM GOVERNORATE, EGYPT.', Journal of Plant Protection and Pathology, 6(12), pp. 1727-1738. doi: 10.21608/jppp.2015.75803
Solaiman, R. SURVEY AND POPULATION FLUCTUATIONS OF COMMON INSECT PESTS AND THEIR PREDATORS ON TWO MEDICINAL PLANT SPECIES AT FAYOUM GOVERNORATE, EGYPT.. Journal of Plant Protection and Pathology, 2015; 6(12): 1727-1738. doi: 10.21608/jppp.2015.75803

SURVEY AND POPULATION FLUCTUATIONS OF COMMON INSECT PESTS AND THEIR PREDATORS ON TWO MEDICINAL PLANT SPECIES AT FAYOUM GOVERNORATE, EGYPT.

Article 10, Volume 6, Issue 12, December 2015, Page 1727-1738  XML PDF (253.15 K)
Document Type: Original Article
DOI: 10.21608/jppp.2015.75803
Author
R. H. A. Solaiman
Department of plant protection, Faculty of Agriculture, Fayoum Univ., Egypt.
Abstract
Thirteen species of insect pests belong to eight families and five orders were recorded on Calendula plants. Nesidocoris tenuis Reut. While twelve insect pests belong to nine Families under six orders were recorded On chamomile plants. The chrysanthemum fly, Trupanea stellata (F.)  was the highest in population followed by Lygus gomellatus H. S. and Nysius graminicolus  K.
Concerning the population fluctuations for the dominant insects pests, it found that N. tenuis had six peaks per season. The highest peaks were recordrd at the 2nd week of April and the end of March for 1st and 2nd seasons, respectively. For Empoasca decipiens Paoli, detected four peaks in the 1st season and five peaks in the 2nd season. The highest peaks were recorded individuals/50 double sweep net strokes in the 2nd week of April and in the 3rd week of March. for 1st and 2nd seasons respectively. On chamomile, Lygus gomellatus had 5 peaks in the 1st season and only four peaks in the 2nd season. N. graminicolus, showed six peaks in the 1st season and 5 peaks in the 2nd season. The highest peaks were at the 1st week of Dec. and the 2nd week of Dec. for 1st and 2nd seasons. Aphids had four peaks in both study seasons, the highest peaks found in the last week of March and 3rd week of Feb. for 1st and 2nd seasons , respectively. Also, population density of T. stellata recorded five peaks for each.

On the other hand, five species of predatory insects belong to four orders (Coleoptera, Hemiptera, Neuroptera and Diptera), were recorded in the first and 2nd seasons on chamomile and calendula plants, respectively. Population density of predators showed that, Orius spp. was the most dominant predator, while the dipterous predators showed the lowest population.

 
Keywords
Calendula officinalis, Matricaria recutita; insect pests; Nesidocoris tenuis; Nysius graminicolus; Trupanea stellata Population dynamics
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