Influência da temperatura na biologia de ninfas de Dichelops melacanthus (Dallas, 1851) (Heteroptera: pentatomidae)

Abstract

ResumoEstudo referente à biologia de ninfas do percevejo barriga verde, Dichelops melacanthus (Dallas, 1851), sob três diferentes temperaturas (15, 20

Nymph developmental time and survivorship, adult longevity, reproduction and body weight of Dichelops melacanthus (Dallas) feeding on natural and artificial diets

“…On this last food, our data (45%) is very similar to the 44% nymphal mortality reported by Chocorosqui & Panizzi (2002), and identical to the mean mortality obtained for nymphs reared on four different photoperiodic regimes and fed pods (immature) and seeds (mature) of soybean (Chocorosqui & Panizzi 2003). The mortality of nymphs on the artificial diet (60%) was higher than that observed for other species of stink bugs such as Nezara viridula (L.) (28.7-38.4% - Panizzi This result might be due to slight differences in the components of the various artificial diets used by different authors and to the characteristics of D. melacanthus that did not adapt to the diet as well as the other species of stink bugs.…”

Resistance to Dichelops melacanthus (Hemiptera: Pentatomidae) in soybean genotypes of different maturity groups

“…This ratio is much higher than that verified by Chocorosqui and Panizzi (2002), who obtained a mean mortality rate of 44% in soybean. However, in the study by those authors, the insects were confined to green pods and dry seeds of the genotype 'Paraná' , which is considered extremely susceptible to the stink bugs complex (Rossetto et al 1986), unlike in our research, in which we studied only the biology of the insects with green pods (R5/R6) from different soybean genotypes, whose majority were carriers of resistance against other insects that attack this crop (Silva et al 2013b;Souza et al 2016).…”

Influence of Diceraeus melacanthus (Hemiptera:Pentatomidae) on the Development and Reactive-Oxigen-Related Enzyme Activity of Corn Seedlings

“…Cotton was also deposited into the boxes to serve as oviposition sites for stink bugs, which were fed with a natural diet, composed of fresh bean pods (Phaseolus vulgaris L., Fabaceae), tree privet fruit (Ligustrum lucidum W. T. Aiton, Oleraceae. ), dried soybeans (Glycine max L. Merril, Fabaceae) and corn seedlings (Z. mays), according to methodology adapted from Chocorosqui and Panizzi (2002).…”