Trapping of internal and external feeding stored grain beetle pests with two types of pitfall traps: a two-year field study

Abstract

Aulicky R., Stejskal V., Kucerova Z., Trematerra P. (2016): Trapping of internal and external feeding stored grain beetle pests with two types of pitfall traps: a two-year field study. Plant Protect. Sci., 52: 45-53.Pitfall trapping studies are available for particular stored grain pest species. In small farms, the stored grain pest control strategy is rarely species-specific but is often "pest ecological-group-specific" instead. A two-year field study was conducted in flat grain stores to compare the efficacy of cone-surface (PC trap; AgriSense-BCS Ltd., Pontypridd, UK) and probe-subsurface (WB Probe II Trap; Trécé Inc., Adair, USA) traps for three ecological insect pest groups (Group I, internal feeding primary pests; Group II, external feeding primary pests; Group III, external feeding secondary pests). Altogether, 1328 specimens (32% Group I, 11% Group II, and 57% Group III) in 12 species of Coleoptera (17% Group I, 25% Group II, and 58% Group III) were trapped. No significant differences were found in the efficacy of PC traps and WB Probe II Traps to catch the evaluated ecological pest groups over the long term. Our study indicated that for trends to appear in long-term trapping there was no need for the simultaneous use of both traps due to the low trapping differences between the surface and subsurface types of traps in all ecological pest groups. However, significant differences between the traps were found in the short-term evaluations and before and after fumigation; in that case, the use of both traps is recommended because of the higher sensitivity and more precise evaluation of efficacy of the control treatment effects.

Minimal Thermal Requirements for Development and Activity of Stored Product and Food Industry Pests (Acari, Coleoptera, Lepidoptera, Psocoptera, Diptera and Blattodea): A Review

“…The third term was the “temperature movement minimum” (TM min ), which was estimated as the minimal temperature at which it was possible to capture the tested pest adults into a pitfall trap. However, using trap capture as criteria of minimum walking ability may not always be quite accurate because the distinct species of stored product insects differ profoundly in their behavioural response to various pitfall traps even at identical temperatures (e.g., [40,41,42]). To avoid confusing terminology regarding activity thresholds, this review followed the approach proposed by Hazell et al [16] and Wakefield and Cogan [40] and decided to use simple intuitive terms as follows.…”

Spatial and temporal aggregation of Oryzaephilus surinamensis from Peninsular Malaysia

“…This might be due to the prevailing poor sanitary conditions in the warehouses in terms of diligent cleaning process, as well as a thorough and detailed inspection schedule of the warehouses. Under suitable moisture and moderate heat conditions, the dust, chaff, mold and damaged grains would provide ample food sources for the secondary pests such as O. surinamensis (Lord, 2008;Aulicky et al, 2015). However, the practice of mixing different rice varieties in one warehouse would also enhance the severity and infestation rate of the pest (Nadeem et al, 2011;Upadhyay and Ahmad, 2011).…”

Field efficacy of brief exposure of adults of six storage pests to nitrogen-controlled atmospheres

“…The insects used for the study were adults of six stored-product coleopteran species: oryzaephilus surinamensis, cryptolestes ferrugineus, tribolium confusum, tribolium castaneum (externally feeding pests; Aulicky et al 2016), Sitophilus granarius, and Sitophilus oryzae (internally feeding pests; Stejskal & Kucerova 1996). All test insects originated from a pesticide-sensitive laboratory culture at the Crop Research Institute in Prague (CRI).…”