Functional Response of &lt;i&gt;Dinarmus basalis&lt;/i&gt; (Rond.) (Hymenoptera: Pteromalidae) Parasitizing &lt;i&gt;Callosobruchus maculatus&lt;/i&gt; (F.)

Islam, Nurul; Islam, W.; Mondal, K. A. M. S. H.

doi:10.3329/jbs.v14i0.436

Cited by 3 publications

(3 citation statements)

References 13 publications

(6 reference statements)

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“…field conditions). Even in the laboratory, the functional response of a parasitoid is affected by many factors such as size of experimental arena, tested densities, time duration of experiments, distribution of hosts, the possibility of searching parasitoids to leave the experimental units and number of parasitoids searching together (Islam et al 2006). Moreover, the foraging behaviour under field conditions is determined by many other factors namely host patch accessibility or distribution, presence of competitors and temperature (Fernández-arhex and Corley 2003;Luna et al 2007).…”

Section: Host Densitymentioning

confidence: 99%

Functional response and life history parameters of Apanteles taragamae, a larval parasitoid of Maruca vitrata

et al. 2010

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The legume pod borer Maruca vitrata Fabricius (Lepidoptera: Crambidae) is a serious pest of cowpea in West-Africa. The parasitoid Apanteles taragamae Viereck (Hymenoptera: Braconidae) that originates from Taiwan is a potential candidate for biological control of M. vitrata. We investigated under laboratory conditions the functional response of the parasitoid by offering each experienced female 10, 20, 30 and 40 larvae of M. vitrata. We studied the influence of different host larval ages on the development, longevity, sex ratio, lifetime fecundity and parasitization rate of the wasp. In a comparative study, we also investigated the life history of A. taragamae and M. vitrata at different temperatures in the range of 20-30°C. The parasitoid successfully parasitized two-and three-day-old host larvae (first and second instars). Younger larvae (one-day-old) were parasitized to a lesser extent, and only males developed in them. Older larvae were not parasitized, partly because of defensive host behaviour. The success of parasitization was positively correlated with the density of two-day-old M. vitrata larvae. Parasitoid developmental time and longevity decreased with increasing temperature. The intrinsic rate of population increase (r m ) exhibited an optimum curve with a maximum at 24-28°C. For the host M. vitrata, r m was maximal at temperatures of 26-30°C. The data are discussed in the context of the potential of A. taragamae for biological control of M. vitrata.

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Section: Host Densitymentioning

confidence: 99%

Functional response and life history parameters of Apanteles taragamae, a larval parasitoid of Maruca vitrata

et al. 2010

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“…on its host Callosobruchus chinensis and Islam (2002) reported that the developmental time of D. basalis on C. maculatus was 12-13 days at a constant temperature of 30±1°C. The present result is similar to that finding.…”

Section: Discussionmentioning

confidence: 99%

Fertility Life Tables of <i>Plastanoxus westwoodi</i> (Kieffer) (Hymenoptera: Bethylidae) on <i>Cryptolestes pusillus</i> (Schon.) (Coleoptera: Cucujidae)

Rahman

Islam²,

Ahmed

1970

J bio-sci.

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Plastanoxus westwoodi is an efficient ectoparasitoid of larvae and pupae of the red flat grain beetle Cryptolestes pusillus. Fertility life tables and effects of host instar on life table parameters of P. westwoodi on C. pusillus were studied in the laboratory. Generally adult females lived for 13-16 days. Oviposition commenced on the 1 st day of adult emergence and continued till death or 1-2 days before the death of a parasitoid. The intrinsic rate of natural increase (rm) was found to be 0.2291 per female per day. The net reproductive rate (R0) was 64.07; the innate capacity for increase (rc) was 0.2096. The finite rate of increase (λ) was calculated as 1.4735 per female per day, while corrected generation time (T) was computed as 18.16 days.

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“…Under traditional storage conditions, 100% infestation of cowpea occurring within 3-5 months of storage is common (Booker 1967, Caswell 1981. Pulses are important sources of proteins, fats, carbohydrates, sugars, vitamin B and minerals, which considered as a poor men meat (Islam et al 2006).…”

Section: Introductionmentioning

confidence: 99%

EFFICACY OF JOJOBA OIL AGAINST TWO STORED LEGUME SEED INSECT PESTS Callosobruchus Maculatus (F.) AND C. Chinensis (L.)

Mahmoud

El-Sebai

Shahen

et al. 2010

Journal of Plant Protection and Pathology

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Adults of Callosobruchus maculatus (F.) and C. chinensis (L.) were exposed to broad been seeds treated with four different concentrations of jojoba oil (70 % EC) 875, 1750, 3500, 7000 ppm and untreated control to evaluate the effectiveness of jojoba oil as a protectant. A negative correlations were observed between the jojoba oil concentration and all evaluated biological parameters, fecundity, egg viability, developmental period of the immature stages, adult emergence, broad bean seeds viability and seeds weight loss percentage for both tested insects C. maculatus and C. chinensis. The obtained results cleared that C. chinensis was more susceptible to jojoba oil than C. maculatus and there is a significant difference between the two tested insects in all tested biological aspects regardless to the concentration (for the fecundity 168.33 and 190 eggs/female, hatchability percentage 60.33 and 69.5 %, developmental period 26.3 and 28.3 days, and 36.33 and 45.33 F1 emerged adults and weight loss percentage 6.02 and 7.56%, respectively. The highest concentration 7000 ppm gave a complete protection of seeds with zero weight loss percent for both tested insects. The mean percentage of weight loss in untreated seeds was 40.61, 49.20%, for C. maculatus and C. chinensis respectively, while, weight loss% reduced to more than the half averaged 7.56 and 6.02% for treated seeds. The residual effect of jojoba oil treatments was clearly effective in the first month of storage period which gave a 100% protection of treated bean seeds with 0.0 F1 emerged adults in both tested insects (100% mortality of developmental stages). After six months of storage period, residual effect of jojoba oil reduced by the storage period prolongation, While, jojoba oil still could protect the broad bean seeds against C. maculatus and C. chinensis attacks although the efficacy of jojoba oil decreased with aging 79.92 and 61.86% reduction of F1 adult emergence compared to untreated control. Slight harmful effect of jojoba oil application on the viability of broad bean seeds, so reduction of germination was most appeared at, the highest concentration7000 ppm particularly at the end of storage period averaged 28.22%.

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Functional Response of <i>Dinarmus basalis</i> (Rond.) (Hymenoptera: Pteromalidae) Parasitizing <i>Callosobruchus maculatus</i> (F.)

Cited by 3 publications

References 13 publications

Functional response and life history parameters of Apanteles taragamae, a larval parasitoid of Maruca vitrata

Functional response and life history parameters of Apanteles taragamae, a larval parasitoid of Maruca vitrata

Fertility Life Tables of <i>Plastanoxus westwoodi</i> (Kieffer) (Hymenoptera: Bethylidae) on <i>Cryptolestes pusillus</i> (Schon.) (Coleoptera: Cucujidae)

EFFICACY OF JOJOBA OIL AGAINST TWO STORED LEGUME SEED INSECT PESTS Callosobruchus Maculatus (F.) AND C. Chinensis (L.)

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