Effects of Essential Oils from Two Species of Piperaceae on Parasitized and Unparasitized Eggs of Oebalus insularis (Heteroptera: Pentatomidae) by Telenomus podisi (Hymenoptera: Platygastridae)

Biological control of Oebalus insularis eggs is considered an important strategy in the control of this rice “stink bug”. Effects of essential oils (EOs) from Piper jacquemontianum Kunth and Piper marginatum Jacq. (Piperaceae) on the viability of parasitized and unparasitized eggs by Telenomus podisi, in concentrations of 0.5 to 2.0%, were evaluated. EOs from both species at a concentration of 2% affected the development of embryons of O. insularis as well as of T. podisi after 24 and 48h of their administration. In both species, P. jacquemontanium and P. marginatum LC50, 24 h before the application of treatments on eggs of O. insularis was 3.835 y 3.037, respectively. LC50 after 48 h of treatment with EOs showed contrasting results which varied from 2.207 and 1.811. for P. jacquemontianum and P. marginatum, respectively. LC50 calculated before 24 h in parasitized eggs of O. insularis by T. podisi, was 3.037 and 2.171 for P. jacquemontianum y P. marginatum, respectively, while after 48h of treatment it was 1.166 y 1.935, respectively. Absorption of the EO components by the unparasitized and parasitized eggs of O. insularis by T. podisi was higher after 48 h of exposition. This is due to the longer exposure time, which allows higher penetration of the EOs into the interior of insect eggs by microscopic pores and micropyle.

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Small Rice Stink Bug, Oebalus poecilus (Dallas) (Hemiptera: Heteroptera: Pentatomidae)

10.1007/springerreference_89377 ◽

2012 ◽

Keyword(s):

Stink Bug ◽

Heteroptera Pentatomidae ◽

Rice Stink Bug

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

Pesquisa Agropecuária Tropical ◽

10.1590/1983-40632018v4850348 ◽

2018 ◽

Vol 48 (1) ◽

pp. 52-58 ◽

Cited By ~ 4

Author(s):

Ronaldo Zantedeschi ◽

Anderson Dionei Grützmacher ◽

Juliano de Bastos Pazini ◽

Flávio Amaral Bueno ◽

Larissa Longaray Machado

Keyword(s):

Biological Control ◽

Stink Bug ◽

Trissolcus Basalis ◽

Glufosinate Ammonium ◽

Soybean Crop ◽

Randomized Design ◽

Lambda Cyhalothrin ◽

Completely Randomized Design ◽

Telenomus Podisi ◽

Laboratory Bioassays

ABSTRACT The use of pesticides in the soybean crop may impair the biological control, if the products are not selective to Telenomus podisi and Trissolcus basalis, which are important stink bug egg parasitoids. This study aimed to assess the selectivity of 15 pesticides registered for soybean crop on adults of T. podisi and T. basalis. Three laboratory bioassays were performed, totaling 18 treatments, in a completely randomized design, with four replications. The insecticides (g or mL of a.i.) imidacloprid + beta-cyfluthrin (0.25 + 0.03), deltamethrin (0.06), thiamethoxam + lambda-cyhalothrin (0.27 + 0.35), acephate (1.87) and fenitrothion (1.25) are harmful to both parasitoids species. Flubendiamide (1.20), diflubenzuron (2.00), Bacillus thuringiensis (0.08) and lufenuron (0.12) are innocuous to both parasitoids. The fungicides azoxystrobin + flutriafol (0.31 + 0.31), trifloxystrobin + prothioconazole (0.37 + 0.44), pyraclostrobin + metconazole (0.33 + 0.12) and trifloxystrobin + cyproconazole (0.94 + 0.40) are innocuous to T. podisi, but slightly harmful to T. basalis. The herbicides glufosinate ammonium salt (0.50) and glyphosate isopropylamine salt (1.20) are innocuous to both parasitoids.

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Identification of Zingiberenol and Murgantiol as Components of the Aggregation-Sex Pheromone of the Rice Stink Bug, Mormidea v-luteum (Heteroptera: Pentatomidae)

Journal of Chemical Ecology ◽

10.1007/s10886-020-01231-0 ◽

2020 ◽

Author(s):

Antonioni Acacio Campos Moliterno ◽

Douglas José De Melo ◽

Paulo Henrique Gorgatti Zarbin

Keyword(s):

Sex Pheromone ◽

Stink Bug ◽

Heteroptera Pentatomidae ◽

Rice Stink Bug

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Populations of Stink Bugs (Heteroptera: Pentatomidae) and their Natural Enemies in Peanuts

Journal of Entomological Science ◽

10.18474/0749-8004-43.2.191 ◽

2008 ◽

Vol 43 (2) ◽

pp. 191-207 ◽

Cited By ~ 33

Author(s):

Glynn Tillman

Keyword(s):

Natural Enemies ◽

Developmental Stages ◽

Seasonal Abundance ◽

Stink Bug ◽

Stink Bugs ◽

Geocoris Punctipes ◽

Oebalus Pugnax ◽

Heteroptera Pentatomidae ◽

Telenomus Podisi ◽

On Farm

The objective of this on-farm study was to determine if peanuts harbor populations of stink bugs (Heteroptera: Pentatomidae) and their natural enemies in Georgia. Eight species of phytophagous stink bugs were found in peanuts over the 5-yr study. The predominant stink bug species were Nezara viridula (L.), Euschistus servus (Say), Euschistus quadrator (Rolston), and Oebalus pugnax pugnax (F.). The remaining 4 species, Acrosternum hilare (Say), Euschistus tristigmus (Say), Euschistus ictericus (L.), and Thyanta custator accerra McAtee, were found in relatively low numbers. All developmental stages of N. viridula, E. servus, E. quadrator, A. hilare, and O. p. pugnax were collected at various times in the study indicating that these 5 species of stink bugs were developing on this crop. Seasonal abundance of N. viridula and E. servus nymphs and adults provided further support that these 2 species of stink bugs developed on peanuts. At least 1 generation of N. viridula and E. servus occurred in peanuts each year, and generally some of the adults that developed on peanuts oviposited on peanuts producing another generation of nymphs in this crop. Because only adults of T. c. accerra, E. tristigmus, and E. ictericus were found in peanuts, these 3 stink bug species probably were not developing on this crop. Adult stink bugs were parasitized by the tachinid parasitoids Trichopoda pennipes (F.) and Cylindromyia spp. Stink bug eggs were parasitized by the scelionids, Trissolcus basalis (Wollaston), Trissolcus thyantae Ashmead, Trissolcus brochymenae (Ashmead), Telenomus podisi Ashmead, and Gryon obesum Masner, and an unknown encyrtid species. Geocoris punctipes (Say), Geocoris uliginosus (Say), Orius insidiosus (Say), Podisus maculiventris (Say), and Oxyopes salticus Hentz preyed on stink bugs in peanuts. Peanuts harbor populations of stink bugs and their natural enemies, and thus the role peanuts play in landscape ecology of stink bugs needs to be ascertained to better understand how to manage stink bug populations in landscapes in which peanuts are associated with other crops.

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