Biological Control of Stored-Product Insects

Schöller, Matthias; Prozell, Sabine; Suma, Pompeo; Russo, Agatino

doi:10.1007/978-3-662-56125-6_9

Cited by 23 publications

(21 citation statements)

References 72 publications

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“…The interaction of the parasitoids with stored product host larvae has been regarded as a “host regulation” procedure that results in the improvement of the quality of the host [29]. However, host-seeking behavior may result in a considerable loss of energy by the parasitoid, which can lead to a concomitant reduction of the parasitism rate, especially in the case of the synovigenic species [30,31]. Hence, irradiation of larvae, up to a certain level to maintain the irradiated individuals functional as hosts, is likely to alleviate this energy loss and provide increase parasitism success and progeny production.…”

Section: Discussionmentioning

confidence: 99%

Using Gamma Irradiated Galleria mellonella L. and Plodia interpunctella (Hübner) Larvae to Optimize Mass Rearing of Parasitoid Habrobracon hebetor (Say) (Hymenoptera: Braconidae)

Hasan

Yeasmin

Athanassiou

et al. 2019

Insects

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We evaluated possible improvements to the mass rearing of the larval parasitoid Habrobracon hebetor (Say) (Hymenoptera: Braconidae) on irradiated host wax moth Galleria mellonella L. and Indian meal moth Plodia interpunctella (Hübner) (Lepidoptera: Pyralidae) larvae. The use of irradiated G. mellonella and P. interpunctella larvae at the dose of 150 Gy proved useful for enhancing the parasitism and adult emergence of H. hebetor due to the absence of negative repercussions on parasitoid development. Overall, parasitism was increased as the host larvae was irradiated with higher doses, while significantly higher parasitism was recorded at 150 and 300 Gy compared to lower doses. The female parasitoids preferred the irradiated larvae and significantly higher numbers of larvae were parasitized compared with non-irradiated larvae. The results also showed that irradiated larvae of G. mellonella served better as hosts for H. hebetor as compared with irradiated larvae of P. interpunctella. The implementation of these findings would be helpful for improving the mass production of parasitoids and the effectiveness of releases of biocontrol agents for the control of stored product pests.

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Section: Discussionmentioning

confidence: 99%

Using Gamma Irradiated Galleria mellonella L. and Plodia interpunctella (Hübner) Larvae to Optimize Mass Rearing of Parasitoid Habrobracon hebetor (Say) (Hymenoptera: Braconidae)

Hasan

Yeasmin

Athanassiou

et al. 2019

Insects

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“…Among alternative approaches, biological control using natural enemies has been neglected due to legal impairments and contamination concerns. For these reasons, in many countries, the release of parasitoids and/or predators inside warehouses is not carried out, despite being legally allowed in the United States [ 8 ] and some countries of Central Europe [ 9 ]. Food regulations usually set certain levels of insect fragments in food that cannot be exceeded regardless of their origin (i.e., pest insects or natural enemies) detected by filth tests [ 3 ].…”

Section: Introductionmentioning

confidence: 99%

“…Parasitoids attacking stored product pests mainly belong to the hymenopteran families Pteromalidae, Ichneumonidae, Braconidae and Bethylidae [ 9 , 10 , 11 ]. Theocolax elegans (Westwood) (Hymenoptera: Pteromalidae) is a cosmopolitan solitary ectoparasitoid of several stored product pests, including the coleopteran species Rhyzopertha dominica F. (Coleoptera: Bostrychidae), Stegobium paniceum L. (Coleoptera: Anobiidae), Callosobruchus spp.…”

Section: Introductionmentioning

confidence: 99%

Volatile Infochemicals from Rhyzopertha dominica Larvae and Larval Feces Involved in Theocolax elegans Host Habitat Location

Giunti

Campolo

Caccamo

et al. 2021

Insects

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The development of biologically based approaches for stored product pest control is needed to reduce chemical inputs. Bioassays were performed to investigate host habitat location in the trophic interaction durum wheat/Rhyzopertha dominica/Theocolax elegans. GC-MS analyses were carried out to identify some chemical compounds produced by the host-related substrates. Choice and no-choice experiments demonstrated that female parasitoids were poorly attracted to intact kernels with respect to the infested substrates. Furthermore, T. elegans females performed longer residence time on infested wheat, and they generally displayed a short-term like fidelity for this cue, remaining on it during the whole observation. Infested wheat emitted one chemical (fenchone), which is possibly linked to host larvae presence, while the feces produced by host larvae emitted some other characteristic compounds. Results demonstrated that the presence of host larvae is a key factor for T. elegans host habitat location, considering that the attractiveness of the undamaged wheat is irrelevant. Furthermore, parasitoid females tended to stay on attractive cues, limiting the risk of contamination of other commodities. Biological control tools may be useful to improve the efficiency of pest management programs, but their application should be carefully evaluated.

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“…Fumigation and other chemical insecticides are widely used to protect stored commodities from insect infestations and contamination, but their use leads to the problem of undesirable residues [11] and development of resistance [12,13]. Moreover, the injudicious use of synthetic pesticides and its concomitant impact on the environment have necessitated the exploration of alternative non-toxic pest control methods; Therefore, many alternatives such as low temperature storage, heat treatment [9,14,15], pheromone-baited traps [16,17], change in photoperiod [5], use of essential oils [18][19][20][21] as well as natural enemies [22][23][24][25][26] have been suggested as replacements for chemical fumigants.…”

Section: Introductionmentioning

confidence: 99%

Untitled

2020

SJAV

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In this research, three age groups of Plodia interpunctella (Hübner) eggs (1-, 2-and 3-day-old eggs) were exposed to ultraviolet irradiation (UVC) with 254nm wavelength for 0.5, 1, 1.5, 2, 4, 8, 16, 24, 32 and 40 minutes, under controlled conditions. The effect of UVC-irradiation on reproduction and population growth parameters investigated for eggs irradiated for 0.5, 1 and 1.5 minutes. The percentage of egg hatching decreased with increase in UVC exposure time, while for each exposure time, the older eggs were more sensitive than the younger ones. The results indicated that different exposure times of UVC-irradiation could affect the reproduction and population growth parameters. The highest value of net fertility rates was observed in 1, 2 and 3-day-old eggs which were treated with 0.5 min exposure. Both the intrinsic rate of increase (r m) and the net reproductive rate (R 0) decreased with increasing exposure time from 0.5 to 1.5 min while the mean generation time (T c) and doubling time (D T) increased within this irradiation range. The lowest amount of r m was obtained in 1, 2 and 3-day-old eggs which were treated with 1.5 min exposure time. The results showed that UVC-irradiation is an appropriate technique for controlling P. interpunctella.

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Biological Control of Stored-Product Insects

Cited by 23 publications

References 72 publications

Using Gamma Irradiated Galleria mellonella L. and Plodia interpunctella (Hübner) Larvae to Optimize Mass Rearing of Parasitoid Habrobracon hebetor (Say) (Hymenoptera: Braconidae)

Using Gamma Irradiated Galleria mellonella L. and Plodia interpunctella (Hübner) Larvae to Optimize Mass Rearing of Parasitoid Habrobracon hebetor (Say) (Hymenoptera: Braconidae)

Volatile Infochemicals from Rhyzopertha dominica Larvae and Larval Feces Involved in Theocolax elegans Host Habitat Location

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