Distributions of western flower thrips (thysanoptera: Thripidae) and its predatory bug orius niger (hemiptera: Anthocoridae) assessed by coloured sticky traps and plant samplings in cotton
Yükleniyor...
Tarih
2011
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The capturing efficiency of four coloured (yellow, green, white and blue) sticky traps, placed at the top, middle and bottom strata of cotton plants, was tested for the western flower thrips, Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae), and its predatory bug, Orius niger (Wolff) (Hemiptera: Anthocoridae), as well as spatial distributions of both insects on the plant in years 2006 and 2007. The white coloured trap was the most attractive to F. occidentalis and O. niger in the 2-year study. The blue coloured trap was the least attractive for Orius. The mean numbers of F. occidentalis and O. niger on the top plant parts (flowers and leaves) and in all coloured traps positioned on the upper parts of the plants were greater than those found in the lower two strata. Taylor's power law analysis showed that F. occidentalis and O. niger adults aggregated in the flowers or on the leaves. This study suggests that top flowers could be preferentially sampled to determine population densities of Frankliniella flower thrips and Orius species in cotton, and thus, sticky traps should be placed on the top level of plants. F. occidentalis: O. niger ratios in the flowers varied from 4 to 60 thrips per Orius adult in the three plant strata. This result may indicate that F. occidentalis experiences more predation from Orius.
Açıklama
Anahtar Kelimeler
Capture, Coloured traps, Cotton, Frankliniella occidentalis, Orius niger, Spatial distribution
Kaynak
Archives of Phytopathology and Plant Protection
WoS Q DeÄŸeri
Scopus Q DeÄŸeri
Q3
Cilt
44
Sayı
16
Künye
Atakan, E. ve Bayram, A. (2011). Distributions of western flower thrips (thysanoptera: Thripidae) and its predatory bug orius niger (hemiptera: Anthocoridae) assessed by coloured sticky traps and plant samplings in cotton. Archives of Phytopathology and Plant Protection, 44(16), 1595-1608.
