Age‐dependent fecundity and life‐fertility tables for Podisus nigrispinus (Dallas) (Het., Pentatomidae)

Abstract

The reproductive potential and longevity of Podisus nigrispinus (Dallas) were determined under laboratory conditions at a constant temperature of 25°C. The data were used to calculate life‐fertility tables and rates of increase. The fecundity plateau of P. nigrispinus lasted 18 days, and during this period mean fecundity was 8.89 eggs per female per day. It started at the eighth day of age and ended at the 18th day of age. The declining fecundity period started at 18 days of age and ended with the death of the females. The female of P. nigrispinus oviposited a mean of 188.54 eggs, and had a mean longevity of 31.21 days. The gross reproductive rate (GRR) was 104.374 females/female; the net reproductive rate (Ro) was 31.945 females/female; the generation time was 47.390 days; the doubling time was 9.480 days; the intrinsic rate of increase (rm) was 0.073, and the finite rate of increase (λ) was 1.076. The predator population increased by 16.61 adult progeny per female per generation in the laboratory.

A dieta alimentar da presa Tenebrio molitor (Coleoptera: Tenebrionidae) pode afetar o desenvolvimento do predador Podisus nigrispinus (Heteroptera: Pentatomidae)?

“…Elas podem determinar o aumento populacional das espécies ao mostrar o potencial reprodutivo de fêmeas nos diferentes tempos (Medeiros et al, 2000). A qualidade da dieta oferecida às formas imaturas tem grande influência no desempenho reprodutivo de adultos de diversos predadores (Finke, 2002;Mayntz et al, 2003;Michaud, 2000).…”

“…Podisus nigrispinus Dallas, 1851 (Heteroptera: Pentatomidae) é um percevejo encontrado em culturas florestais e agrícolas no Brasil, com eficiência em predar lepidópteros e coleópteros daninhos (Torres et al, 2006;Grazia, 2011;Oliveira et al, 2011;Menezes et al, 2012b). Este predador tem sido criado em laboratório e liberado em programas de controle biológico em culturas como o eucalipto (Zanuncio et al, 2002a), algodão (Medeiros et al, 2000), soja (Ferreira et al, 2008) e tomate .…”

A laboratory and field condition comparison of life table parameters of Aphis gossypii Glover (Hemiptera: Aphididae)

“…Life table studies are often used by scientists as a method of projecting the growth of populations and predicting the size of a population. The life table provides an integrated and comprehensive description which includes the details of development times, the survival rates of each growth stage, and the fecundity and life expectancy of a population (Istock 1981;Chi 1990;Carey 1993;Medeiros et al 2000;Southwood and Henderson 2000;Yang et al 2013).…”

Attack behavior of Podisus rostralis (Heteroptera: Pentatomidade) adults on caterpillars of Bombyx mori (Lepidoptera: Bombycidae)

“…Predation is a complex process and it is necessary to identify factors affecting it such as prey and predator densities, prey (defense mechanisms) and predator characteristics (attack mechanisms) (Holling, 1959). Predatory stinkbugs can persist in the field even during periods of prey shortage (Molina-Rugama et al, 1998) what increases their importance for biological control in agricultural and forest areas MolinaRugama et al, 1997;Mohaghegh et al, 1999;Medeiros et al, 2000;Lemos et al, 2001 and2003). Podisus are general predators that feed on Lepidoptera (Lemos et al, 2001 and2003), Coleoptera (Biever and Chauvin, 1992;HoughGoldstein and McPherson, 1996), Homoptera, Orthoptera and Diptera (Molina-Rugama et al, 1997 and1998).…”

“…Podisus are general predators that feed on Lepidoptera (Lemos et al, 2001 and2003), Coleoptera (Biever and Chauvin, 1992;HoughGoldstein and McPherson, 1996), Homoptera, Orthoptera and Diptera (Molina-Rugama et al, 1997 and1998). Podisus rostralis (Stäl) (Heteroptera, Pentatomidae) is found in most countries of South America (Thomas, 1992), but unlike other predatory Pentatomidae (Molina-Rugama et al, 1997;Zanuncio et al, 2000 andMedeiros et al, 2000;Lemos et al, 2001 and2003) few studies have been developed with this species. The development of immature of P. rostralis with three alternative preys (Matos Neto et al, 1999) and reproductive strategy of its females with different feeding intervals (Molina-Rugama et al, 1998) were studied in laboratory.…”