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Biological aspects of the beetle Delphastus davidsoni fed with whitefly eggs laid on tomato genotypes Scientia Agricola
Oriani,Maria Auxiliadora de Godoy; Vendramim,José Djair.
Many plant breeding programs have incorporated plant resistance characteristics without considering how this resistance may affect the natural enemies of plant pests. We evaluated the biological aspects of Delphastus davidsoni (Gordon) fed with Bemisia tabaci B biotype eggs laid on tomato genotypes with different trichome densities and types. On LA1335 and NAV1062, the development periods were 21 days, and the larval mortality rates were 46.7 % and 28.9 %, respectively; on IAC294, the development period was 26 days, and the mortality rate 88.9 %. None of the larvae completed development when fed with whitefly eggs laid on PI134418. Most of the deaths took place in the second instar stage because the larvae became trapped in the glandular trichomes; similar...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Solanum lycopersicum; Lady beetle; Plant resistance; Trichomes; Tritrophic interaction.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162014000500003
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Effects of Food Deprivation on the Development of Coleomegilla maculata (De Geer) (Coleoptera: Coccinellidae) Neotropical Entomology
Santos-Cividanes,TM; Anjos,ACR dos; Cividanes,FJ; Dias,PC.
The lady beetle Coleomegilla maculata (De Geer) is a natural enemy of several insect pests and feeds on pollen and nectar to survive periods when prey is scarce. The effect of the feeding interval on the development, survival, fecundity, and longevity of C. maculata was determined. Newly hatched larvae of C. maculata were reared individually and fed with eggs of the Mediterranean flour moth Anagasta kuehniella (Zeller) at intervals of one, two, and three days under controlled conditions (23 ± 1ºC; 60 ± 10% RH; 12 h phtophase). The duration of larval instars and the total larval stage was prolonged as the feeding interval increased. The larval period lasted on average 9.2 ± 0.19 days when the larvae were fed daily with prey, and 14.6 ± 0.48 days when food...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biology; Biological control; Lady beetle; Predator; Prey availability.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2011000100017
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Nesidiocoris tenuis Reuter (Hemiptera: Miridae) and Cycloneda sanguinea limbifer (Casey) (Coleoptera: Coccinellidae): behaviour and predatory activity on Myzus persicae Zulzer (Hemiptera: Aphididae) Rev. Protección Veg.
Duarte,Leticia; Pacheco,Ronal; Quiñones,Madelaine; Martínez,María de los Ángeles; Paes Bueno,Vanda Helena.
The aim of this work was to evaluate the predation and behavior activities of the predatory bug Nesidiocoris tenuis Reuter and the lady beetle Cycloneda sanguinea limbifer (Casey) on the aphid. Myzus persicae Zulzer, as well as their effect on this prey dispersal. The experiments were carried out in an acclimatized room at 23.7±1, 8ºC, RH 62,6±5% and 12 h photofase. The number of aphids on the infested and non-infested plants was recorded after 24 hours. Behavioral activities such as moving, searching, resting, encountering aphids, feeding, encountering aphid exuviae, and cleaning, and the time spent in each one were recorded. C. sanguinea limbifer was more voracious than N. tenuis on M. persicae. The ladybeetle led to more aphid dispersion than N. tenuis;...
Tipo: Journal article Palavras-chave: Biological control; Bug; Lady beetle; Aphid; Pepper.
Ano: 2014 URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1010-27522014000200004
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