Host Range and Development of Microplitis rufiventris (Hymenoptera: Braconidae) an Imported Parasitoid of Several Lepidopterous Pests

McCutcheon, Gloria S.; Harrison, W. W.

doi:10.1093/ee/16.4.855

Cited by 6 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For consideration in future validation studies, we note that investigations of host range typically only use adult parasitoids recently emerged from cocoons (McCutcheon and Harrison, 1987; Goldson et al ., 1992; Berndt et al ., 2007; Hoddle and Pandey, 2014) or do not indicate parasitoid age. However, host acceptance behaviour by female parasitoids is dynamic; i.e., low-life expectancy females are more likely than high-life expectancy females to accept low-quality hosts (Roitberg et al ., 1992; Roitberg et al ., 1993; Fletcher et al ., 1994; Sirot et al ., 1997).…”

Section: Discussionmentioning

confidence: 99%

Potential host range of Cotesia vanessae (Hymenoptera: Braconidae), a parasitoid new to North America and a possible biological control agent of noctuid pest species

Hervet

Laird

Floate

2022

Bull. Entomol. Res.

View full text Add to dashboard Cite

The likelihood of parasitoids establishing in new geographic regions depends upon the availability of suitable host species. Identifying these hosts and the degree of their suitability is particularly important when they include species that are economically important as pests. In laboratory studies, we examined the suitability of 47 species of Lepidoptera as potential hosts of a parthenogenetic strain of the gregarious parasitoid Cotesia vanessae (Hymenoptera: Braconidae). Previously known from Eurasia and northern Africa, the first known recovery of C. vanessae in North America was in 2009. C. vanessae completed development in 34 species, of which three were known hosts (Noctuidae) and 31 (30 Noctuidae, 1 Nymphalidae) were not. Many of these noctuid species are economic pests. Parasitoid fitness was generally highest on species of Plusiinae (Noctuidae), measured as either percentage of successful parasitism, developmental time, or number and mass of F1 progeny. Closely related species were generally similar in their suitability as hosts. In some cases, parasitoid eggs or larvae were killed by the immune system of the parasitized host, but the host eventually failed to excrete food waste, did not pupate, and ultimately died. Such cases reached up to 100% mortality depending upon the lepidopteran species. The suitability of many species of noctuid pests as hosts for C. vanessae suggests that this parasitoid will become established widely throughout North America and may help to suppress populations of some pest species.

show abstract

Section: Discussionmentioning

confidence: 99%

Potential host range of Cotesia vanessae (Hymenoptera: Braconidae), a parasitoid new to North America and a possible biological control agent of noctuid pest species

Hervet

Laird

Floate

2022

Bull. Entomol. Res.

View full text Add to dashboard Cite

show abstract

“…Emerging parasitoids were individually conserved in 1.5-ml microtubes with ethanol 90% for further identification by G erard Delvare from CIRAD (UMR CBGP, Montpellier, France). Parasitism rates were calculated for each field by dividing the number of parasitized larvae by the difference between the total number of larvae and the number of dead larvae (McCutcheon & Harrison, 1987). Predators of the leafminer were collected by plant threshing (shaking five plants in a large plastic bag), stored in a 20-ml tube containing ethanol 90%, and counted in the laboratory.…”

Section: Insect Samplingmentioning

confidence: 99%

Seasonal decline of the tomato leafminer, Tuta absoluta, in the shifting landscape of a vegetable‐growing area

Sylla

Seydi

Diarra

et al. 2018

Entomologia Exp Applicata

View full text Add to dashboard Cite

Insect pest populations exhibit seasonal dynamics in response to changes in resource availability or other environmental factors such as climatic conditions, natural enemies, and intra‐ or interspecific competition. Understanding such dynamics is critical for developing effective integrated pest management strategies. The objective of the present study was to identify factors driving the seasonal decline of the tomato leafminer, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae), in the shifting landscape of a vegetable‐growing area in Senegal. A set of 42 tomato fields was monitored for the number of T. absoluta adults caught in pheromone traps and for the incidence of larvae, during 5 months from June to November 2016 in the Niayes area (Senegal). The surface of solanaceous host crops, climatic conditions, and abundance of natural enemies were also monitored. A drastic decline in T. absoluta abundance was observed during the rainy season. The decrease in resource availability, especially tomato crops, in the surrounding landscape of monitored fields was the main factor affecting the population dynamics during the rainy season. However, alternative host crops such as eggplant and Ethiopian eggplant, can provide ‘reservoirs’ for residual populations of the pest. For applied purpose, it would be interesting to focus the management efforts on residual populations during the rainy season, to make more difficult the reconstitution of populations during the dry season.

show abstract

Studies on the mature teratocytes in the body cavity ofspodoptera littoralis(Boisd.) attacked bymicroplitis rufiventriskok

Hegazi

El‐Minshawy

Khafagi³

et al. 1999

Archives Of Phytopathology And Plant Protection

View full text Add to dashboard Cite

Host Range and Development of Microplitis rufiventris (Hymenoptera: Braconidae) an Imported Parasitoid of Several Lepidopterous Pests

Cited by 6 publications

References 0 publications

Potential host range of Cotesia vanessae (Hymenoptera: Braconidae), a parasitoid new to North America and a possible biological control agent of noctuid pest species

Potential host range of Cotesia vanessae (Hymenoptera: Braconidae), a parasitoid new to North America and a possible biological control agent of noctuid pest species

Seasonal decline of the tomato leafminer, Tuta absoluta, in the shifting landscape of a vegetable‐growing area

Studies on the mature teratocytes in the body cavity ofspodoptera littoralis(Boisd.) attacked bymicroplitis rufiventriskok

Contact Info

Product

Resources

About