Host range, seasonal abundance, biology and predation capacity of Campylomma spp. Reuter and puton (Hemiptera: Miridae)
2002
Belal, E.M.
The members of the genus Campylomma (Hemiptera: Miridae) in The Sudan are of common occurence in the cotton agroecosystems and considered as predatory species of other insects. This study was conducted with the objectives to investigate host range and seasonal abundance of Campylomma spp., also to specifically determine the life cycle and predation capacity of C. nicolaci Reuter and Puton. The Host range and seasonal abundance surveys were carried out during Septermber 1998 to 1999 at weekly in the Gezira and Rahad areas. The life cycle and predation capacity were studied under laboratory condition. The results indicated that Campylomma spp. have a wide host range among cultivated and weed plant species e.g. Cotton (Gossypium spp). Sorghum (Sorghum bicolocr) wheat (Triticum aestivum), Tomato (Lycopersicon esculentum) and hambouk (Abutilon spp.). The relative abundance of the Campylomma spp. was highest during the period from late September. to late December. The total life span (from egg to adult) of C. nicolasi an average was 26.4 days. Egg incubation period was 4.5 days. Nymphal stage lasted for 12.6 days, through 5 instars. Regarding the feeding capacity a single C. nicolasi concumed a total of 96 cotton aphids (Aphis gossypii) during its feeding stages (nymph + adult). The adult consumed 7.8 aphids per day. Also a single adult of C. nicolasi consumed 203 African bollworm eggs (Heliocoverpa armigera) at an average of 15.4 eggs per day. The results concluded that this bug is potentially important in the biological control of these pests, and can play arole in integrated pest management
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