Efficacy of Grain Protectants and Phosphine Against Liposcelis bostrychophila, L. entomophila, and L. paeta (Psocoptera: Liposcelidae)

Nayak, Manoj K.; Collins, P. J.; Reid, Sarah

doi:10.1093/jee/91.5.1208

Cited by 79 publications

(82 citation statements)

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“…On the other hand, the simultaneous use of spinosad with an organophosphorous insecticide, may provide a complementary effect (Nayak and Daglish 2007;Daglish 2008). Methoprene was ineffective against L. bostrychophila, L. entomophila, and L. paeta, and a survey of field populations of L. bostrychophila and L. entomophila indicated that this tolerance occurs naturally and it is not related to resistance (Nayak et al 1998). In our experiments, methoprene reduced adult progeny production in comparison with the application of spinosad alone, but numbers of progeny nymphs were comparable to those in the untreated wheat.…”

Section: Discussionmentioning

confidence: 99%

“…Methoprene is a juvenile hormone analogue, which affects development of immature insects, can have ovicidal effects, and also can cause sub-lethal effects such as reduced adult fecundity in insects exposed as immatures (Oberlander et al 1997) or adults (Daglish and Pulvirenti 1997). Several studies document effectiveness of methoprene against many stored-grain insect species, including R. dominica, C. ferrugineus, and O. surinamensis, but it does not control Sitophilus species (Nayak et al 1998;Arthur 2004;Chanbang et al 2007Chanbang et al , 2008Daglish 2008).…”

Section: Introductionmentioning

confidence: 99%

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Efficacy of spinosad and methoprene, applied alone or in combination, against six stored-product insect species

et al. 2010

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Efficacy of the insecticides spinosad and methoprene, applied alone or in combination to wheat, was evaluated against six stored-product insect species, Rhyzopertha dominica, Sitophilus oryzae, S. granarius, Cryptolestes ferrugineus, Oryzaephilus surinamensis, and Liposcelis bostrychophila. The concentrations of the insecticides were 0.1 and 0.5 ppm for spinosad and 1 and 5 ppm for methoprene. Parental mortality of R. dominica was 100% on wheat treated with either rate of spinosad, with no progeny production in any combination treatment. Parental mortality of S. oryzae did not exceed 62%, and progeny production was not reduced by any insecticide treatment. All S. granarius adults exposed on wheat treated with spinosad alone at 0.5 ppm were killed, but parental mortality was reduced when methoprene was added. Progeny production was reduced in treatments containing spinosad. Mortality of adult C. ferrugineus was 97% or greater in treatments containing spinosad, but adult mortality of O. surinamensis and L. bostrychophila was not reduced by insecticide treatments. The specific combinations of spinosad and methoprene evaluated in our study would have no benefit over spinosad used alone for control of any of the six species tested.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Efficacy of spinosad and methoprene, applied alone or in combination, against six stored-product insect species

et al. 2010

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“…It has also been observed that they may change their dietary needs as food availability changes. Nayak et al (1998) and Nayak and Collins (2001) reported that a diet containing whole wheat (14% moisture content), kibbled wheat, whole meal wheat flour and powdered brewer's yeast (pasteurized, non-fermenting) in the proportion of 10 : 10 : 10 : 0.1 (v/v) was most suitable for the growth and development of the three most important species of psocids, L. bostrychophila, L. entomophila and L. paeta. When reared on such medium, there was a 12-fold increase in the population of L. bostrychophila, a 5-fold increase in L. entomophila and an 8-fold increase in L. paeta over a 4-week period.…”

Section: Biology Growth and Developmentmentioning

confidence: 99%

Psocid: A new risk for global food security and safety

Ahmedani

Naz

Aslam

et al. 2010

Appl. Entomol. Zool.

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Post-harvest losses caused by stored product pests are posing serious threats to global food security and safety. Among the storage pests, psocids were ignored in the past due to unavailability of the significant evidence regarding quantitative and qualitative losses caused by them. Their economic importance has been recognized by many researchers around the globe since the last few years. The published reports suggest that the pest be recognized as a new risk for global food security and safety. Psocids have been found infesting stored grains in the USA, Australia, UK, Brazil, Indonesia, China, India and Pakistan. About sixteen species of psocids have been identified and listed as pests of stored grains. Psocids generally prefer infested kernels having some fungal growth, but are capable of excavating the soft endosperm of damaged or cracked uninfected grains. Economic losses due to their feeding are directly proportional to the intensity of infestation and their population. The pest has also been reported to cause health problems in humans. Keeping the economic importance of psocids in view, their phylogeny, distribution, bio-ecology, management and pest status have been reviewed in this paper.

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“…Before 1990, psocids were not considered serious pests of stored products; however, in Australia, they have become the most frequently encountered storage pest in some areas (Rees 2003). The increased concerns regarding psocids can be attributed to their varied response to management tactics that have been developed for coleopteran pests, e.g., some psocid species are resistant to residual insecticides and the fumigant phosphine (Nayak et al 1998(Nayak et al , 2002a(Nayak et al ,b, 2003Nayak 2006). In addition, markets increasingly view psocids as contaminants (Kuč erová 2002, Nayak 2006.…”

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confidence: 99%

Efficacy of Heat Treatment for Disinfestation of Concrete Grain Silos

Opit¹,

Arthur²,

Bonjour³

et al. 2011

jnl. econ. entom.

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Field experiments were conducted in 2007 and 2008 to evaluate heat treatment for disinfestations of empty concrete elevator silos. A Mobile Heat Treatment Unit was used to introduce heat into silos to attain target conditions of 50ЊC for at least 6 h. Ventilated plastic containers with a capacity of 100 g of wheat, Triticum aestivum L., held Rhyzopertha dominica (F.) (Coleoptera: Bostrichidae) and Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae). Polyvinyl chloride containers with a capacity of 300 g of wheat held adults of Liposcelis corrodens (Heymons) (Psocoptera: Liposcelididae) and Liposcelis decolor (Pearman), which were contained in 35-mm Petri dishes within the grain. Containers were fastened to a rope suspended from the top of the silo at depths of 0 m (just under the top manhole), 10 m, 20 m, and 30 m (silo ßoor). When the highest temperature achieved was Ϸ50ЊC for 6 h, parental mortality of R. dominica and T. castaneum, and both psocid species was 98 Ð100%. Progeny production of R. dominica occurred when there was parental survival, but in general R. dominica seemed less impacted by the heat treatment than T. castaneum. There was 100% mortality of L. corrodens at all depths in the heat treatments but only 92.5% mortality for L. decolor, with most survivors located in the bioassay containers at the top of the silo. Results show wheat kernels may have an insulating effect and heat treatment might be more effective when used in conjunction with sanitation and cleaning procedures.

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Efficacy of Grain Protectants and Phosphine Against Liposcelis bostrychophila, L. entomophila, and L. paeta (Psocoptera: Liposcelidae)

Cited by 79 publications

References 0 publications

Efficacy of spinosad and methoprene, applied alone or in combination, against six stored-product insect species

Efficacy of spinosad and methoprene, applied alone or in combination, against six stored-product insect species

Psocid: A new risk for global food security and safety

Efficacy of Heat Treatment for Disinfestation of Concrete Grain Silos

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