Bats provide a critical ecosystem service by consuming a large diversity of agricultural pest insects

2022 ◽  
Vol 324 ◽  
pp. 107722
Author(s):  
Brooke Maslo ◽  
Rebecca L. Mau ◽  
Kathleen Kerwin ◽  
Ryelan McDonough ◽  
Erin McHale ◽  
...  
Keyword(s):  
Ecosystem Service ◽  
Agricultural Pest ◽  
Pest Insects

scholarly journals Plasticity Is Key to Success of Drosophila suzukii (Diptera: Drosophilidae) Invasion

2020 ◽  
Vol 20 (3) ◽  
Author(s):  
Catherine M Little ◽  
Thomas W Chapman ◽  
N Kirk Hillier
Keyword(s):  
Climatic Conditions ◽  
Food Sources ◽  
Agricultural Pest ◽  
Physiological Plasticity ◽  
Drosophila Suzukii ◽  
Climate Zones ◽  
Novel Food ◽  
Species Invasiveness ◽  
Pest Insects ◽  
Initial Discovery

Abstract After its initial discovery in California in 2008, Drosophila suzukii Matsumura has become one of the most important invasive agricultural pest insects across climate zones in much of Asia, Europe, North America, and South America. Populations of D. suzukii have demonstrated notable behavioral and physiological plasticity, adapting to diverse environmental and climatic conditions, interspecific competition, novel food sources, and potential predators. This adaptability and plasticity have enabled rapid range expansion and diversified niche use by D. suzukii, making it a species particularly suited to changing habitats and conditions. This article reviews factors and evidence that influence plasticity in D. suzukii and promotes this species’ invasiveness.

scholarly journals Effects of essential oil from leaves of Eugenia sulcata on the development of agricultural pest insects

2014 ◽  
Vol 24 (4) ◽  
pp. 413-418 ◽  
Author(s):  
Marcelo S. Gonzalez ◽  
Barbara G. Lima ◽  
Alyne F.R. Oliveira ◽  
Douglas D. Nunes ◽  
Caio P. Fernandes ◽  
...  
Keyword(s):  
Essential Oil ◽  
Agricultural Pest ◽  
Pest Insects

Long-term persistence of agricultural pest insects by risk-spreading dispersal

2018 ◽  
Vol 33 (5) ◽  
pp. 1031-1037 ◽  
Author(s):  
Maica Krizna Areja Gavina ◽  
Kotaro Aoki ◽  
Genki Ichinose ◽  
Jomar Fajardo Rabajante ◽  
Hiromu Ito ◽  
...  
Keyword(s):  
Agricultural Pest ◽  
Pest Insects ◽  
Risk Spreading

scholarly journals Finding indications of lag time, saturation and trading inflow in the emergence record of exotic agricultural insect pests in Japan

2019 ◽  
Vol 54 (4) ◽  
pp. 437-450
Author(s):  
Nobuo Morimoto ◽  
Keizi Kiritani ◽  
Kohji Yamamura ◽  
Takehiko Yamanaka
Keyword(s):  
Insect Pests ◽  
Lag Time ◽  
Species Pool ◽  
Insect Species ◽  
Agricultural Pest ◽  
Agricultural Pests ◽  
Stored Product Pests ◽  
Pest Insects ◽  
Agricultural Imports ◽  
Exhaustive List

Abstract Agricultural imports are the primary pathway for the introduction of exotic insect pests. The invasion records of exotic insect pests are also influenced by the lag time before detection and saturation caused by the limited species pool of potential invaders. We compiled an exhaustive list of exotic insect species in mainland Japan and tried to evaluate the connection between the commodity types of agricultural imports and insect types of agricultural pests, in addition to the effects of lag time and saturation. We found that lag time was prominent when all pest types were merged into one group, whilst saturation always existed when we divided the records into the four agricultural pest types. Saturation was especially prominent in stored product pests because this group contained many cosmopolitan insect pests that could have easily inhabited the newly built mills throughout Japan in the 1950s. We suspect that the saturation effect was masked by admixture amongst pests with different saturation patterns. Our findings indicate that all commodities, i.e. flowers, fruits, vegetables, cereal and timber, contributed to the invasion of pest insects as potential pathways. However, it was unclear if certain items had comparatively greater significance in this process.

scholarly journals Characterization of a Biofilm Bioreactor Designed for the Single-Step Production of Aerial Conidia and Oosporein by Beauveria bassiana PQ2

2021 ◽  
Vol 7 (8) ◽  
pp. 582
Author(s):  
Héctor Raziel Lara-Juache ◽  
José Guadalupe Ávila-Hernández ◽  
Luis Víctor Rodríguez-Durán ◽  
Mariela Ramona Michel ◽  
Jorge Enrique Wong-Paz ◽  
...  
Keyword(s):  
Biological Control ◽  
Antifungal Activity ◽  
Secondary Metabolites ◽  
Beauveria Bassiana ◽  
Single Step ◽  
Agricultural Pest ◽  
Simultaneous Production ◽  
Pest Insects ◽  
Aerial Conidia

Beauveria bassiana is an entomopathogenic fungus that is used for the biological control of different agricultural pest insects. B. bassiana is traditionally cultivated in submerged fermentation and solid-state fermentation systems to obtain secondary metabolites with antifungal activity and infective spores. This work presents the design and characterization of a new laboratory-scale biofilm bioreactor for the simultaneous production of oosporein and aerial conidia by B. bassiana PQ2. The reactor was built with materials available in a conventional laboratory. KLa was determined at different air flows (1.5–2.5 L/min) by two different methods in the liquid phase and in the exhaust gases. The obtained values showed that an air flow of 2.5 L/min is sufficient to ensure adequate aeration to produce aerial conidia and secondary metabolites by B. bassiana. Under the conditions studied, a concentration of 183 mg oosporein per liter and 1.24 × 109 spores per gram of support was obtained at 168 h of culture. These results indicate that the biofilm bioreactor represents a viable alternative for the production of products for biological control from B. bassiana.

High Voltage Electron Microscopy of Viral Inclusion Bodies

1980 ◽  
Vol 38 ◽  
pp. 486-487 ◽  
Author(s):  
H.M. Mazzone ◽  
W.F. Engler ◽  
G. Wray ◽  
A. Szirmae ◽  
J. Conroy ◽  
...  
Keyword(s):  
New York ◽  
Environmental Protection Agency ◽  
Inclusion Bodies ◽  
Host Cells ◽  
High Voltage Electron Microscopy ◽  
Voltage Electron ◽  
Viral Particles ◽  
Pest Insects ◽  
Viral Inclusion ◽  
Insect Gut

Viral inclusion bodies isolated from infected pest insects are being evaluated by the U.S. Dept. of Agriculture as biological insecticides against their hosts. Our research on these inclusion bodies constitutes part of an effort to support their approval by the Environmental Protection Agency as insect control agents. The inclusion bodies in this study are polyhedral in shape and contain rod-shaped viral particles. When ingested by pest insects, the inclusion bodies are broken down in the insect gut and release the viral particles which infect and multiply in the nuclei of host cells. These viruses are termed nucleopolyhedrosis viruses (NPV) and are representatives of the baculoviruses (Wildy, P. 1971 IN J.L. Melnick, ed., Monographs in Virology, vol. 5, S.Karger, New York).

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