Efficacy of spinetoram as a contact insecticide on different surfaces against stored-product beetle species

Vassilakos, Thomas N.; Athanassiou, Christos G.; Chloridis, A.; Dripps, James E.

doi:10.1007/s10340-014-0574-6

Cited by 21 publications

(15 citation statements)

References 22 publications

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“…surinamensis , the presence of food does not increase survival, which means that the level of knockdown does not change much through time, and immobilization may be more consistent [ 7 ]. Similar results have been reported by Vassilakos et al [ 11 ] for surfaces treated with the bacterial insecticide spinetoram.…”

Section: Discussionsupporting

confidence: 91%

“…On concrete, knockdown was extremely low for all insecticides, and it is well established that most insecticides are less effective on concrete than on other non-porous surfaces, such as metal or tile surfaces [ 20 – 24 ]. Concrete is porous, so it absorbs a portion of the insecticide, and also alkaline, which is can increase degradation and breakdown of insecticides [ 11 , 21 ].…”

Section: Discussionmentioning

confidence: 99%

“…confusum can be considered as more likely to recover than adults of O . surinamensis [ 7 , 11 , 30 ]. Leksey et al [ 2 ] found that for several insecticides, mostly pyrethroids but also for the neonicotinoid acetamiprid, the lethality index value was reduced, as recovery from the moribund stage was high.…”

Section: Discussionmentioning

confidence: 99%

“…Petri dishes (90 mm in diameter, 15 mm high, 63.61 cm 2 ) were used as the experimental units. Two types of surfaces that are commonly used in storage facilities were created in bottoms of the petri dishes, one with concrete and one with galvanized steel (metal), as described in detail by Vassilakos et al [ 11 ]. Briefly, a water-cement mixture was prepared (Rockite ® for anchoring and patching, Hartline Products Co. Inc., Cleveland, OH, USA) by mixing 260 ml of water with 1 kg of powder, and the solution was poured into petri dish bottoms to create the concrete arenas.…”

Section: Methodsmentioning

confidence: 99%

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Using a Lethality Index to Assess Susceptibility of Tribolium confusum and Oryzaephilus surinamensis to Insecticides

et al. 2015

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We evaluated knockdown caused by four insecticides: alpha-cypermethrin, chlorfenapyr, pirimiphos-methyl and fipronil against adults of Tribolium confusum Jacquelin Duval, the confused flour beetle and Oryzaephilus surinamensis (L.), the sawtoothed grain beetle. Bioassays were conducted on concrete and metal surfaces. Adults of the tested species were exposed on both surfaces treated with the above insecticides at two doses (low and high). Knockdown assessment was done after 15, 30 and 60 min of adult exposure in the treated surfaces. Also, after 1, 3, 5, 7 and 14 d of exposure, a lethality index was calculated with an equation resulting to values from 0 to 100, where 100 indicated complete mortality and 0 complete survival. We also developed a lethality index by ranking each adult on each surface from 0 to 4, 0: adults moved normally, 1: adults were knocked down, but were able to walk for short intervals, 2: adults were knocked down and unable to walk, but with visible movement of antennae etc., 3: adults were knocked down, with very minimal movement of the tarsi and the antennae and 4: adults were dead (no movement). Knockdown of adults immediately after exposure (15–60 min) was higher for pirimiphos-methyl followed by alpha-cypermethrin, for both dose rates tested and species, but only on the metal surface. The lethality index was nearly 100 for all insecticides after 5d of exposure for O. surinamensis, while for T. confusum the adult lethality index was considerably lower for alpha-cypermethrin, suggesting that that recovery from knockdown occurred. Chlorfenapyr was the only insecticide that was more effective on concrete than on metal, while the reverse was noted for the other three insecticides. These results show that knockdown has different levels, which can be used as indicators of insect mortality or recovery.

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Section: Discussionsupporting

confidence: 91%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Using a Lethality Index to Assess Susceptibility of Tribolium confusum and Oryzaephilus surinamensis to Insecticides

et al. 2015

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“…Slight difference may be due to difference in plant extracts and concentrations, used. The toxicity (70%) in the bioassays with spinetoram was also close to Vassilakos et al (2014) who recorded 72.4% against Rhyzopertha dominica (Fabricius, 1792) (Coleoptera: Bostrichidae). A slight difference may be due to different species.…”

Section: Lc50supporting

confidence: 74%

Comparative toxic potential of some plant extracts and spinetoram against Tribolium castaneum (Herbst, 1797) (Coleoptera: Tenebrionidae)

Rehman¹

2019

Turkish Journal of Entomology

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Bacterial Insecticides and Inert Materials

Athanassiou

Arthur

2018

Recent Advances in Stored Product Protection

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Efficacy of spinetoram as a contact insecticide on different surfaces against stored-product beetle species

Cited by 21 publications

References 22 publications

Using a Lethality Index to Assess Susceptibility of Tribolium confusum and Oryzaephilus surinamensis to Insecticides

Using a Lethality Index to Assess Susceptibility of Tribolium confusum and Oryzaephilus surinamensis to Insecticides

Comparative toxic potential of some plant extracts and spinetoram against Tribolium castaneum (Herbst, 1797) (Coleoptera: Tenebrionidae)

Bacterial Insecticides and Inert Materials

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