Results 71 to 80 of about 884,548 (203)

Tree Squirrels Selectively Disperse High‐Quality Acorns Away From Tree Trunks

Integrative Zoology, EarlyView.
Acorn quality and squirrel feeding behavior significantly structured spatial dispersal patterns of two Californian oak species. Non‐infested acorns were preferentially selected for embryo excision and dispersed farther than infested ones. Acorns were fully consumed near tree trunks, signaling rapid feeding in safe refuges, whereas non‐eaten, partially ...
Miguel Puente‐Ruiz, Raquel Muñoz‐Gallego, Marta Peláez, Rodolfo Dirzo, Ramón Perea   +4 more
wiley   +1 more source

Histomorphology Structure of the Gastric Caecum, Midgut, and Malpighian Tubules in Adult Flatheaded Pine Borer Chalcophora mariana (Linnaeus, 1758) (Coleoptera: Buprestidae)

Acta Zoologica, EarlyView.
ABSTRACT The pine weevil is one of the largest species in the jewel beetle (Buprestidae) family found in Central Europe and Turkey. Chalcophora mariana is generally considered a secondary guest and primarily develops in weakened, decaying, or recently dead pine trees.
Hicret Arslan, Selami Candan
wiley   +1 more source

Segregation of Hydroxycinnamic Acid Esters Mediating Sweetpotato Weevil Resistance in Storage Roots of Sweetpotato

Frontiers in Plant Science, 2017
Resistance to sweetpotato weevils (Cylas spp.) has been identified in several sweetpotato (Ipomoea batatas) landraces from East Africa and shown to be conferred by hydroxycinnamic acids that occur on the surface of storage roots.
Milton O. Anyanga, Milton O. Anyanga, Benard Yada, Benard Yada, G. C. Yencho, Gorrettie N. Ssemakula, Agnes Alajo, Dudley I. Farman, Robert O. M. Mwanga, Philip C. Stevenson, Philip C. Stevenson   +10 more
doaj   +1 more source

Larval character evolution in Holometabola (Insecta)

Cladistics, EarlyView.
Abstract Larvae, a novel type of immature stage, are a crucial innovation of the Holometabola. Larval features therefore provide key evidence for reconstructing evolutionary transformations in this megadiverse group. Here we present the first formal reconstruction of larval character evolution, using maximum parsimony and Bayesian ancestral‐state ...
Rolf Georg Beutel, Jakub Goczał, Di Li
wiley   +1 more source

FACTORS INFLUENCING WEST TENNESSEE FARMERS' WILLINGNESS TO PAY FOR A BOLL WEEVIL ERADICATION PROGRAM [PDF]

Data from a survey were used to evaluate Tennessee farmers' willingness to pay for the boll weevil eradication program. Producer experience, boll weevil control costs, and attitudes about boll weevil damage and insecticide usage after the program were ...
Roberts, Roland K., Collins, Rebecca L., English, Burton C., Larson, James A.   +3 more
core  

Tachinidae (Diptera) as Floral Visitors and Pollinators in Natural and Managed Systems

Entomologia Experimentalis et Applicata, EarlyView.
We review the roles of bristle flies (Tachinidae) as pollinators in natural and managed systems. We find that most tachinid genera visit flowers and that floral‐adapted mouthparts have evolved repeatedly many times in the family. We review patterns of floral specificity and assess the efficacy of tachinids as pollinators with case studies.
John O. Stireman III, Pierfilippo Cerretti   +1 more
wiley   +1 more source

ECONOMIC RISK EFFICIENCY OF BOLL WEEVIL ERADICATION [PDF]

The purpose of this study was to determine the economic risk efficiency of implementing a boll weevil (Anthonomus grandis [Boheman]) eradication (BWE) program in cotton (Gossypium hirsutum L.) producing regions of the Mississippi Delta.
McClendon, Ronald W., Szmedra, Philip I., Wetzstein, Michael E.   +2 more
core  

The bread of Toledo: Prices and political economy, 1535–1800

The Economic History Review, EarlyView.
Abstract We study the market for common white bread in the city of Toledo through a new 266‐year‐long series of bread prices, obtained from the cash purchases and wholesale bread‐for‐wheat contracts of large institutions. Our data are strongly consistent with fragmentary evidence on retail price regulation, as well as with shorter series from other ...
Mauricio Drelichman, David González Agudo   +1 more
wiley   +1 more source

ECONOMIC RETURNS TO THE BOLL WEEVIL ERADICATION PROGRAM [PDF]

The economic viability of the Boll Weevil Eradication program in Alabama, Florida, and Georgia is assessed based on a five-year survey of producers. Results indicate the program increases yield 100 pounds per acre. This implies a 19 percent internal rate
Duffy, Patricia A., Ahouissoussi, Nicolas B.C., Wetzstein, Michael E.   +2 more
core  

Low Rates of Kaolin in Different Application Periods Reduce Diaphorina citri Population and Huanglongbing Incidence in Commercial Citrus Orchards

Journal of Applied Entomology, EarlyView.
ABSTRACT Huanglongbing (HLB) is the most destructive citrus disease worldwide, and it has been disseminated by the Asian citrus psyllid Diaphorina citri, the vector of the causing agent Candidatus Liberibacter asiaticus. Although processed kaolin reduces psyllid infestation, long‐term field data from commercial orchards are limited.
Marcelo Pedreira de Miranda, Wellington Ivo Eduardo, Renato Beozzo Bassanezi, Eduardo Augusto Girardi, Haroldo Xavier Linhares Volpe   +4 more
wiley   +1 more source