2007
DOI: 10.1590/s1519-566x2007000300012
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Abstract: Aphidius colemani Viereck is among the main natural enemies used for biological control of Aphis gossypii Glover. The objective of the present study was to evaluate the development of A. colemani and the alterations caused by the parasitism in the host A. gossypii in different temperatures and to estimate the thermal requirements of the parasitoid. The experiments were carried out in controlled environmental chambers at 16, 19, 22, 25, 28 and 31 +/- 1 degrees C, 70 +/- 10% RH, and 12h photophase. Second-instar… Show more

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Cited by 13 publications
(5 citation statements)
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References 20 publications
(31 reference statements)
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“…bassiana applied directly for pest control has previously been reported to have a negative relationship with parasitoids acting indirectly through lowering the quality of the aphids/diminishing the propensity to oviposit in the hosts and lowering parasitoid emergence [ 26 ]. We did not observe a difference in the development time of the parasitoids between treatments and our reported development times fit well with previous results at similar temperatures [ 86 ]. Our hypothesis that parasitoid development would be influenced by EF treatment was not confirmed in this case.…”
Section: Discussionsupporting
confidence: 92%
“…bassiana applied directly for pest control has previously been reported to have a negative relationship with parasitoids acting indirectly through lowering the quality of the aphids/diminishing the propensity to oviposit in the hosts and lowering parasitoid emergence [ 26 ]. We did not observe a difference in the development time of the parasitoids between treatments and our reported development times fit well with previous results at similar temperatures [ 86 ]. Our hypothesis that parasitoid development would be influenced by EF treatment was not confirmed in this case.…”
Section: Discussionsupporting
confidence: 92%
“…The high EA values observed in the single parasitism experiment for both parasitoid species probably reßect the fact that hosts were selected according to the criterion of oviposition in the thorax or abdomen, and conÞrm earlier reports (Giri et al 1982;Sampaio et al 2006Sampaio et al , 2007. In contrast, the low EA percentage obtained after oviposition sequence B could indicate that A. ervi was able to recognize P. volucre-parasitized hosts, although such discrimination is not very common (Mackauer 1990).…”
Section: Discussionsupporting
confidence: 81%
“…Temperature can directly affect the development and survival of parasitoids but also indirectly affecting the aphid populations (Thackray et al 2004, Le Lann et al 2011, Souza et al 2017. The adult longevity of A. colemani decreases with increasing temperature, ranging from 21.3 days at 16°C to 1.7 days at 28°C, as well as immature survival ranging from 83.3% at 16°C to 20.4% at 28°C (Sampaio et al 2007), therefore, lower temperatures during the winter could be propitious for this biological parameter and increased parasitoid population. The prevalence of A. platensis may be related to the current abundance of aphid species, especially R. padi.…”
Section: Discussionmentioning
confidence: 99%