Population growth of the khapra beetle,  Trogoderma granarium  Everts (Coleoptera: Dermestidae) on different commodities

Athanassiou, Christos G.; Kavallieratos, Nickolas G.; Boukouvala, Maria C.

doi:10.1016/j.jspr.2016.05.001

Cited by 74 publications

(40 citation statements)

References 27 publications

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“…Furthermore, both local competing species did better in wheat rather than paddy rice, including S. oryzae , although the competitive performance of R. dominica was higher in paddy rice than wheat, in stark opposition to S. oryzae . It has been recently established that T. granarium can develop much better in wheat than in rice ( Athanassiou et al, 2016 ), as also observed in our study. However, most of the interceptions in United States are in rice ( Myers and Hagstrum, 2012 ).…”

Section: Discussionsupporting

confidence: 90%

“…Therefore, newly hatched larvae of T. granarium may benefit from the frass and/or cracked kernels produced by other co-occurring species. Recent findings by Athanassiou et al (2016) provide evidence for the beneficial role of cracked kernels in the rapid population growth of T. granarium . In that study, the authors found that population growth of this species was more than three times higher on cracked kernels than in whole wheat kernels ( Athanassiou et al, 2016 ).…”

Section: Discussionmentioning

confidence: 97%

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Invader Competition with Local Competitors: Displacement or Coexistence among the Invasive Khapra Beetle, Trogoderma granarium Everts (Coleoptera: Dermestidae), and Two Other Major Stored-Grain Beetles?

et al. 2017

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Local potential competitor species are important determinants of the invasibility of an environment even when widely recognized invasive species are concerned since it may compromise its establishment. Thus, the outcome of the direct competition among the invasive khapra beetle, Trogoderma granarium, and the cosmopolitan species lesser grain borer, Rhyzopertha dominica and rice weevil, Sitophilus oryzae, and thus the likelihood of establishment of T. granarium under their co-occurrence, was here explored in paddy rice and wheat, at temperatures between 25 and 35°C and through 200 days of storage. Insect infestations were higher in wheat rather than in paddy rice. Trogoderma granarium was unable to displace any of the competing species under two and three-species competition experiments retaining lower adult population than both local competitors at the lowest temperature level. Rhyzopertha dominica prevailed in paddy rice, while S. oryzae prevailed in wheat. Paradoxically, T. granarium adults retained low population growth but contributed more for the total frass production and grain loss, much more than that recorded for R. dominica. Nonetheless, T. granarium larvae exhibited high population numbers 130 days after the introduction of the parental individuals. At higher temperature levels (30 and 35°C) the numbers of T. granarium larvae were extremely high even after 65 days, while the numbers of the other two species rapidly declined. Interestingly, the simultaneous presence of R. dominica and S. oryzae was beneficial for the population growth of T. granarium. Consequently, T. granarium has the ability to outperform other primary stored-product insects at high temperatures, while its presence at low temperatures remains for long periods apparently unaffected by other co-occurring species. Hence, T. granarium, in wheat, is able to outcompete other major species of stored-product insects at elevated temperatures, while at 25°C this species can maintain low numbers of individuals for long periods, which can rapidly produce population outbursts when the prevailing conditions are suitable for its development.

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Section: Discussionsupporting

confidence: 90%

Section: Discussionmentioning

confidence: 97%

Invader Competition with Local Competitors: Displacement or Coexistence among the Invasive Khapra Beetle, Trogoderma granarium Everts (Coleoptera: Dermestidae), and Two Other Major Stored-Grain Beetles?

et al. 2017

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“…Cracked wheat and cracked maize varieties tested here may act as alternative nourishment for T. castaneum, favoring its survival when no suitable food exists in the storage facility. Previous reports have documented that several types of commodities act as vehicles where stored-product insects stay alive but in very low numbers till preferred commodities become available [34,35,47]. Further experimentation is needed to clarify this issue.…”

Section: Discussionmentioning

confidence: 99%

“…Dias) that were clean, free of infestation and pesticides were used in the experiments. Before the initiation of the experiments, the moisture of the tested commodities was adjusted at 13.5% by heating them in an oven at 50 • C [34,35]. The moisture was tested with a calibrated moisture meter (mini GAC plus, Dickey-John Europe S.A.S., Colombes, France).…”

Section: Commoditiesmentioning

confidence: 99%

Suitability of Semolina, Cracked Wheat and Cracked Maize as Feeding Commodities for Tribolium castaneum (Herbst; Coleoptera: Tenebrionidae)

Skourti

Kavallieratos

Papanikolaou

2020

Insects

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In the current study it was investigated the suitability of semolina, cracked wheat and cracked maize as feeding commodities for the red flour beetle, Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae). The pest completed its development on all tested commodities. The developmental time of larvae was lower on cracked wheat (59.6 days) and cracked maize (54.6 days) compared to semolina (72.8 days). The developmental time of pupae did not differ significantly among tested commodities, ranging from 6.2 to 6.6 days. Female and male longevities were 70.9 and 77.1 days, 92.2 and 77.9 days and 177.0 and 183.7 days, when T. castaneum was fed on semolina, cracked wheat and cracked maize, respectively. The highest fecundity (28.7 eggs/female) was recorded when T. castaneum was fed on semolina, followed by cracked wheat (2.7 eggs/female) and cracked maize (1.2 eggs/female). The prolonged adult longevity, which was observed on cracked maize, may be attributed to the absence of the cost of reproduction, due to low fecundity on this commodity. The values of the intrinsic rate of increase were 0.014 and −0.021 females/female/day when it was fed on semolina and cracked wheat, respectively, while no demographic analysis was carried out for cracked maize due to high early larval mortality and low fecundity on this commodity. The net reproductive rate and mean generation time were 6.19 females/female and 127.5 days and 0.16 females/female and 91.9 days, when it was fed on semolina and cracked wheat, respectively. Based on demographic analysis, T. castaneum population growth is favored only on semolina. We expect semolina to act as a suitable commodity for T. castaneum, while cracked wheat and cracked maize allow only its survival by acting as alternative commodities. The estimated demographic parameters of T. castaneum on the tested commodities could be used as a useful tool to predict its population outcome in storage facilities.

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“…Taking a practical point of view, the knowledge of the life histories of certain strains leads to the optimization of their cultures in the insectary for the production of adequate numbers of individuals that are necessary for laboratory tests. Since origin impacts the response of T. confusum strains to insecticides either as grain protectants or as fumigants, or even as topical applications [25,[79][80][81][82][83], and taking into account the results of the current study, further research is needed to shed light on the life history of such strains infesting different types of commodities when they are treated with insecticides. The fact that different T. confusum strains show remarkable differences in their population dynamics when infesting certain suitable grain commodities should not be overlooked because it may lead to considerable losses.…”

Section: Discussionmentioning

confidence: 99%

Biological Features and Population Growth of Two Southeastern European Tribolium confusum Jacquelin du Val (Coleoptera: Tenebrionidae) Strains

Kavallieratos

Andrić

Golić

et al. 2020

Insects

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A study of the biological features and the potential population growth between two laboratory strains of the confused flour beetle, Tribolium confusum Jacquelin du Val (Coleoptera: Tenebrionidae) from Greece and Serbia is conducted on cracked barley and cracked white rice. The results show that, at a species level, T. confusum is able to complete development on cracked barley but not on cracked white rice. Therefore, cracked white rice proves to be an unsuitable commodity for T. confusum. Larval development on cracked barley is significantly shorter for the Serbian compared to the Greek strain (37.7 and 49.7 days, respectively), but pupal development does not differ between the two strains (6.2 days for both strains). Additionally, male longevity does not differ between the Greek and Serbian strains (144.4 and 151.4 days, respectively), while female longevity is significantly shorter for the Serbian (151.7 days) compared to the Greek strain (186.6 days). Fecundity does not differ between the two strains (11.3 and 17.7 eggs/female for the Greek and the Serbian strain, respectively), whilst survival is higher for the Serbian strain on both tested commodities. The values of the net reproductive rate, the intrinsic rate of increase and the finite rate of increase on cracked barley are significantly higher for the Serbian (7.27 females/female, 0.025 female/female/day and 1.026, respectively) compared to the Greek strain (2.91 females/female, 0.014 females/female/day and 1.014, respectively). It therefore is expected that different strains of T. confusum may exhibit variable phenology as well as potential population growth. Additionally, we expect our results to have bearing on the management of this species.

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Population growth of the khapra beetle, Trogoderma granarium Everts (Coleoptera: Dermestidae) on different commodities

Cited by 74 publications

References 27 publications

Invader Competition with Local Competitors: Displacement or Coexistence among the Invasive Khapra Beetle, Trogoderma granarium Everts (Coleoptera: Dermestidae), and Two Other Major Stored-Grain Beetles?

Invader Competition with Local Competitors: Displacement or Coexistence among the Invasive Khapra Beetle, Trogoderma granarium Everts (Coleoptera: Dermestidae), and Two Other Major Stored-Grain Beetles?

Suitability of Semolina, Cracked Wheat and Cracked Maize as Feeding Commodities for Tribolium castaneum (Herbst; Coleoptera: Tenebrionidae)

Biological Features and Population Growth of Two Southeastern European Tribolium confusum Jacquelin du Val (Coleoptera: Tenebrionidae) Strains

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