The biology of Lasioderma serricorne

Abstract Background Stored grain products suffer a considerable economic loss due to insect infestations. The resistance of pests to insecticide, and residues on crops are produced by the application of insecticide. Nowadays, incremental necessity has been occurred to find out alternatives to chemicals. As biological control agents, entomopathogenic nematodes (EPNs) attract attention increasingly in the research area recently. Results The aim of the study was to evaluate the pathogenicity of Pakistani isolates Steinernema bifurcatum and S. affine against the stored grain pests, Tribolium castaneum and Lasioderma serricorne, under laboratory conditions. Suspensions of nematodes were applied at 4 different concentrations 0, 50, 100, and 200 IJs/ml and 3 variable temperatures 15, 30, and 45°C. Pathogenicity rate was recorded after 48 h of application. The larval stage is found more susceptible than the adult. At 200 IJs, S. bifurcatum showed high mortality of L. serricorne larva (92%) and T. castaneum larva (93%), whereas S. affine showed 90 and 95% mortality of L. serricorne and T. castaneum larva, respectively, at 200 IJs. The results revealed that both species of EPN were able to control and reproduce on L. serricorne and T. castaneum. Maximum mortality was recorded at 45 °C from S. bifurcatum whereas S. affine at 15 °C. Conclusions Therefore, S. bifurcatum and S. affine could be suggested as a biological control agent for hot and cold climatic zones, respectively.

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Response of phosphine-resistant and –susceptible Lasioderma serricorne adults to different light spectra

Journal of Stored Products Research ◽

10.1016/j.jspr.2021.101808 ◽

2021 ◽

Vol 92 ◽

pp. 101808

Author(s):

Georgia V. Baliota ◽

Christos G. Athanassiou ◽

Lee W. Cohnstaedt

Keyword(s):

Lasioderma Serricorne ◽

Light Spectra

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Genetic variability in the natural populations of Lasioderma serricorne (F.) (Coleoptera: Anobiidae), detected by RAPD markers and by esterase isozymes

Bulletin of Entomological Research ◽

10.1017/s0007485315000723 ◽

2015 ◽

Vol 106 (1) ◽

pp. 47-53 ◽

Cited By ~ 4

Author(s):

T. Coelho-Bortolo ◽

C.A. Mangolin ◽

A.S. Lapenta

Keyword(s):

Genetic Variability ◽

Random Amplified Polymorphic Dna ◽

Natural Populations ◽

Electrophoretic Analysis ◽

Effective Control ◽

Lasioderma Serricorne ◽

Control Programs ◽

Dried Fruit ◽

High Level ◽

High Degree

AbstractLasioderma serricorne (F.) is a small cosmopolitan beetle regarded as a destructive pest of several stored products such as grains, flour, spices, dried fruit and tobacco. Chemical insecticides are one of the measures used against the pest. However, intensive insecticide use has resulted in the appearance of resistant insect populations. Therefore, for the elaboration of more effective control programs, it is necessary to know the biological aspects of L. serricorne. Among these aspects, the genetic variability knowledge is very important and may help in the development of new control methods. The objective of this study was to evaluate the genetic variability of 11 natural populations of L. serricorne collected respectively in three and four towns in the states of Paraná and São Paulo, Brazil, using 20 primers random amplified polymorphic DNA (RAPD) and polymorphisms of esterases. These primers produced 352 polymorphic bands. Electrophoretic analysis of esterases allowed the identification of four polymorphic loci (Est-2, Est-4, Est-5 and Est-6) and 18 alleles. Results show that populations are genetically differentiated and there is a high level of genetic variability within populations. The high degree of genetic differentiation is not directly correlated to geographical distance. Thus, our data indicate that movement of infested commodities may contribute to the dissemination of L. serricorne, facilitating gene flow.

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