Status of Stink Bug (Hemiptera: Pentatomidae) Egg Parasitoids in Soybeans in Louisiana | Semantic Scholar (2024)

There is no evidence that ornamental landscapes composed of native plants increased parasitism or predation rates of sentinel egg masses of two native stink bug species or the invasive BMSB, compared with those composed entirely of exotic plants.

Two strains of Beauveria bassiana (Bals.-Criv) Vuill were evaluated for potential control of redbanded stink bug and found to have a short re-entry interval and no harvest interval, making it a potentially attractive and environmentally benign alternative to conventional synthetic insecticides for control in soybeans.

Wasps raised in E. heros eggs presented both the genome and the antigenome forms of the HhV genome, and RNA-deep sequencing of HhV positive T. podisi RNA pools yielded a complete genome of HhV with high coverage.

It is demonstrated that refrigeration at 8°C, while resulting in complete mortality of H. halys embryos after 10 days, are more suitable for T. japonicus parasitism than those stored at sub-zero temperatures.

Four species of hymenopteran parasitoids in the family Scelionidae were recovered from stink bug eggs: Telenomus podisi Ashmead, Trissolcus basalis Wollaston, TrISSolcus edessae Fouts, and Trissolscus euschisti AshMead, and one parasitoid in theFamily Mymaridae (Hymenoptera) was recovered.

Stink bugs were parasitized by 8 species of egg parasitoids, and Tr.

Results indicate stink bug egg parasitoids and predators are significant factors in the natural biological control of stink bugs in corn fields.

The redbanded stink bug was initially identified in southern Louisiana during 2000 and had been reported in all soybean producing regions in Louisiana by 2006 and is reported as a predominant pest of soybeans from locations within the United States.

It is shown that natural enemies of stink bugs are prevalent and important biological control agents in these farmscapes and parasitism and predation of sentinel and natural occurring Euschistus servus and Nezara viridula (L.) egg masses in Georgia.

Seed quality was better in areas where T. basalis was released, demonstrating the efficacy of inoculative releases of this egg‐parasitoid which could be an important component of the soybean IPM program in Brazil.

It is suggested that polyphagy and high dispersal ability are the main characteristics of effective natural enemies of naturally occurring mobile pests.

Evaluation of the effectiveness of parasitoids as a biological control agent in soybean fields suggests that R. pedestris starts to occur at the R2–R4 stages of field soybeans regardless of seed sowing time, and population density peaks after the R5 stage, and Sampling eggs on leaves is an alternative method to measure Riptortus pedestris populations in the field since most eggs are found on leaves.

Four species of parasites were recovered, of which Telenomus podisi Ashmead was the predominant egg parasite of all 4 host species studied in soybean and alfalfa and Trissolcus euschisti (Ashmead) was also recovered from pentatomid eggs collected from soybeans and several other plant species.

...

...