Use of ablated stalks to assess field rates of parasitism of<i>Diatraea saccharalis</i>(Lepidoptera: Crambidae) by<i>Cotesia flavipes</i>(Hymenoptera: Braconidae)

Wiedenmann, Robert N.; Smith, James W.

doi:10.1080/09583150500188056

Cited by 2 publications

(2 citation statements)

References 15 publications

(19 reference statements)

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“…Até então, os métodos mais utilizados para avaliação de voo e parasitismo de C. flavipes consistem no uso de lagartas sentinelas (WHITE et al, 2004;WIEDENMANN;SMITH JR., 2006;VOLPE, 2009), entretanto, esse tipo de método exige avaliação populacional prévia para mensurar a presença de indivíduos selvagens na área. Outro problema é a rastreabilidade dos indivíduos liberados, que podem parasitar mais de uma armadilha.…”

Section: Dispersão De C Flavipesunclassified

Marcação, dispersão e capacidade de parasitismo de Cotesiaflavipes (CAMERON) (HYMENOPTERA: BRACONIDAE)

et al. 2020

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The objective of this study was to evaluate the biological aspects of C. flavipesyour markup, and the development of a methodology for adult capture. Sugarcane borers fed on artificial diet containing the dyes SudanRed7B and Solvent Blue 35 in concentrations of 200 and 400 ppm, vegetable oil at 200 and 400 ppm and without oil. Later, the caterpillars were parasitized in the above treatments. We evaluated the period between parasitism and larvae emergence, pupation, weight of the masses and pupae, sex ratio, adult longevity and marking. After the setting of the dye / marker suitable concentration for adult C. flavipes, we evaluated the dispersibility and parasitism of adult females under field conditions. We used the Dunnett test for the variables related to the development of larvae, pupae and adults of C. flavipesand the GLM procedure for analysis of variance and the LSMEANS to fit the media in each factor tested. Set up The SudanRed 7B dye at a concentration of 200 ppm is the best dye / concentration to mark the larval parasitoid C. flavipes after developed the methodology for capturing C. flavipes, which associated with marking, allowed evaluating the flight capacity by distance and capture these individuals accurately. It was defined bottle trap 600 as the best pet for evaluation capture and parasitism. The maximum flight distance field in individuals was 17 meters, and the captured number was increased up to five meters.80% of the traps with captured females were parasitized.

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Section: Dispersão De C Flavipesunclassified

Marcação, dispersão e capacidade de parasitismo de Cotesiaflavipes (CAMERON) (HYMENOPTERA: BRACONIDAE)

et al. 2020

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“…Twenty-seven stems of the cultivar SP80-3280 (susceptible to D. saccharalis) were cut using a circular saw. The cut sample comprised one full segment of the sugarcane stem and half of the segments above and below the cut, in order to prevent water loss and ensure continued nutrition and presence of larva inside the stem (Wiedenmann and Smith Jr., 2006). The stems were perforated using an electric drill with a 5/32 mm drill bit, and a single 1.5 cm long D. saccharalis larva was inserted into each opening.…”

Section: Experiments Four -Evaluation Of C Flavipes Parasitism By Usimentioning

confidence: 99%

Determination of method to evaluate parasitism and cover area for studies on Cotesia flavipes in sugarcane

Xavier

Volpe²,

Barbosa³

et al. 2014

Afr. J. Agric. Res.

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The continual rearing of Cotesia flavipes (Cameron) (Hymenoptera: Braconidae) in laboratories (for approximately 30 years) may have led to loss of genetic variability due to drift, selection, and crossing among siblings. This in turn may have compromised the biological characteristics of the insect, notably with respect to its activity level, thereby altering its parasitic and dispersal capacities. This study investigated methods that allowed the testing of parasitism and number of release points per hectare for C. flavipes. We tested the efficiency of different colored Moericke traps, yellow Moericke traps containing different concentrations of frass, stick yellow traps arranged at different heights and others containing sugarcane stems, with each stem containing a larva of the sugarcane borer, Diatraea saccharalis (Fabricius). Only the use of stems was efficient for measuring cover, aggregation, and geostatistics of its parasitism. The samples showed an aggregated distribution, and the maximum dispersal distance of C. flavipes was 25 m. Geostatistical analyses enabled the evaluation and mapping of the number of parasitized larvae. This method permits tests aimed at evaluating quality control during the biological control of D. saccharalis with C. flavipes.

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Use of ablated stalks to assess field rates of parasitism ofDiatraea saccharalis(Lepidoptera: Crambidae) byCotesia flavipes(Hymenoptera: Braconidae)

Cited by 2 publications

References 15 publications

Marcação, dispersão e capacidade de parasitismo de Cotesiaflavipes (CAMERON) (HYMENOPTERA: BRACONIDAE)

Marcação, dispersão e capacidade de parasitismo de Cotesiaflavipes (CAMERON) (HYMENOPTERA: BRACONIDAE)

Determination of method to evaluate parasitism and cover area for studies on Cotesia flavipes in sugarcane

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