Methodology of mass multiplication of Telenomus podisi Ash. and Trissolcus basalis (Woll.) (Hymenoptera: Scelionidae) on eggs of Euschistus heros (Fab.) (Hemiptera: Pentatomidae)

Abstract

. In a first experiment, egg masses randomly distributed were shown the most adequate method of exposure of E. heros to parasitism. In a second experiment, egg masses of E. heros were randomly glued on cardboard cards and exposed to parasitism by T. podisi and T. basalis. The parasitoids multiplied on E. heros eggs showed parasitism (ca. 99%) similar to that observed with T. basalis reared on N. viridula eggs (99.7%). Emergence rates were higher than 80% for T. podisi and T. basalis multiplied on E. heros eggs and 95% for T. basalis reared on N. viridula eggs. Later, similar emergence rates (> 78%) were observed on cardboard cards tied on soybean plants. No differences were detected between courtship behavior of T. podisi and T. basalis emerged from E. heros eggs compared to T. basalis emerged from N. viridula eggs. The sex ratios in the offspring of T. podisi and T. basalis emerged from E. heros eggs were similar to that exhibited by the offspring of T. basalis emerged from N. viridula eggs. The results suggest that the developed methodology is simple, efficient and can be an important tool in biological control program of soybean stink bugs.

Selectivity of pesticides registered for soybean crop on Telenomus podisi and Trissolcus basalis

“…Thus, this study aimed to assess the selectivity of pesticides registered for soybean crop on the stink bug egg parasitoids T. podisi and T. basalis in adult stage. Peres & Corrêa-Ferreira (2004), was used.…”

Longevity and fecundity of the egg parasitoid Telenomus podisi provided with different carbohydrate diets

“…Jones & Westcott () demonstrated that 2.1% of females and 13.5% of males remained alive after 60 days when Trissolcus basalis Wollaston (Hymenoptera: Platygastridae) were given honey and water. Access to honey in laboratory has been found to benefit T. podisi as well, by enhancing their longevity and fecundity over that of water‐fed individuals (Yeargan, ; Peres & Corrêa‐Ferreira, ).…”

Oviposition preference of the neotropical brown stink bug Euschistus heros on artificial substrates of different colors

“…The impact of feeding this species can cause signifi cant losses in yield, quality and germination potential of grains (PANIZZI & SLANSKY-JÚNIOR, 1985;PANIZZI et al, 2000a;CORRÊA-FERREIRA & AZEVEDO, 2002; on its biology, ecology and behavior in order to develop effective control tactics (SILVA et al, 2011;PANIZZI, 2013). Thus, rearing and maintaining phytophagous stink bugs in the laboratory is important to allow the conduction of biology tests, resistant strains tests, effi cacy of insecticides, use in biological control programs with parasitoids, identifi cation of pheromones, among others (CORRÊA-FERREIRA, 2002;PEREZ & CORRÊA-FERREIRA, 2004;GODOY et al, 2005;SILVA et al, 2011).…”