Cotesia is a genus of Braconid wasps. Some species parasitize caterpillars of species considered as pests. Thus they are used as biocontrol agents. Cotesia. — Florida Entomologist — Volume , No. 4. Cotesia flavipes ( Hymenoptera: Braconidae) as a biological control agent of sugarcane stem borers in. Summary. Releases of the parasitoid Cotesia flavipes have been carried out since late in Colombia’s Cauca River Valley to complement other biological .
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In general, diploid males exhibit low viability [ 434550 ], an inability to mate [ 51 ], or are sterile [ 52 ] because the sperm is unable to penetrate the egg [ 53 ].
Cotesla 07 May Mise au point de l’elevage de masse d’Apanteles chilonis Matsumura et d’Apanteles flavipes Cameron Hymenoptera Braconidae sur tris Lepidopteres Pyralidae foreurs des graminees Chilo zacconius Blezynski, Genetic aspects of insect production.
The highest rate of emergence was observed in the F4 generation Agronomie Tropicale, 37 2: Discussion The severity with which the effects of inbreeding are flavipee in a population is closely related to the reproduction type of a species [ 23 ]. Mating behaviour of the braconid wasp, Apanteles glomeratus L.
Cotesia – Wikipedia
A genetic perspective on mating systems and sex ratios of parasitoid wasps. Taxonomic Tree Top of page Domain: Studies on Lepidopterous pests of rice crops in Hong Kong, with particular reference to the yellow stem-borer, Tryporyza incertulas Wlk.
Occasionally, some manage to carry out fertilization, but produce sterile triploid daughters [ 54 ]. This procedure was conducted for each generation until the tenth generation. Progenies generated with different genetic coteeia have better genetic variety even if siblings mate. Evaluation of the biological control program against Diatraea spp. Indian Journal of Entomology, 35 3: Braconidaein which the size of the offspring and the proportion of females were higher in the inbred compared with the outbred group [ 41 ].
Braconidae [ 60 ] and C.
Nonparametric estimation from imcomplete observations. Empirical studies do not support the hypothesis that sl-CSD is the only mechanism dlavipes sex determination in the genus Cotesia [ 334455 ], which includes about species worldwide [ 56 ]. Occurrence of Cotesia flavipes Cameron Hym: Features of the establishment and dispersal in Guadeloupe of Apanteles flavipes Hym.: Presence of Cotesia flavipes Cameron Hymenoptera: Polaszek A, Walker AK.
Studies with larger numbers of strictly inbred generations must also be done in order to confirm the absence of deleterious effects. De Bortoli1 Cotessia M. Biology, rearing and a trial release of Apanteles flavipes in the Florida Everglades to Control the sugarcane borer. Genetic evidence for diploidisin of biparental males in Habrobracon.
The results showed that the effects of inbreeding depressions are more severe in survival and fecundity of adult diploid species than in haplodiploides species. Youm et al ; Gallo, ; Youm et al. Biological control of agricultural pests in Brazil. Laboratory studies flafipes superparasitism in Apanteles flavipes Cameron and Apanteles chilonis Munakata Braconidae: Braconidae an important parasitoid of graminaceous stalk borers.
Specific status and separation of Apanteles of the sub-group flavipes Hym.: Thus, it is not possible to infer that their performance has been affected dramatically as a result of rearing methodology adopted by the mass production labs. As with any crop, sugarcane has a variety of insects that are associated with its production. Florida Entomologist, 75 4: Crozier [ 58 ] suggested that in species exhibiting ml-CSD, the occurrence of citesia males remains rare even under inbreeding, since occasional outbred crosses would be sufficient to restore heterozygosity at some of the sex loci.
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Thus, one can consider the Brazilian population as a single population of C. Anais da Sociedade Entomologica do Brasil, 22 3: After 90 hours, mortality was recorded for all individuals.
The authors have declared that no competing interests exist. Braconidae reared at different host densities and the estimated cost of its commercial production. Thus, the deleterious recessive alleles expressed by males might be subject to the selection of the environment and eliminated from the population, thereby reducing the deleterious effects of inbreeding [ 24 flvipes, 2526 ].
SAS for mixed models 2nd ed. However, gregarious species with high frequencies of inbreeding in the field may still suffer the flavkpes of an inbreeding depression, such as Trichogramma pretiosum Riley, Hymenoptera: Adaptive consequences of male haploidy In: Crop Protection, 13 7: The absence of the CSD mechanism in C.