Search Results - "Walker, Gregory P"

Infection with a plant virus modifies vector feeding behavior by Stafford, Candice A, Walker, Gregory P, Ullman, Diane E

“…Vector infection by some animal-infecting parasites results in altered feeding that enhances transmission. Modification of vector behavior is of broad adaptive…”
Get full text

virus capsid component mediates virion retention and transmission by its insect vector by Chen, Angel Y. S, Walker, Gregory P, Carter, David, Ng, James C. K

“…Numerous pathogens of humans, animals, and plants are transmitted by specific arthropod vectors. However, understanding the mechanisms governing these…”
Get full text

Hitching a ride: Vector feeding and virus transmission by Stafford, Candice A., Walker, Gregory P., Ullman, Diane E.

“…The majority of plant viruses rely on insect vectors for transmission. Insects with piercing-sucking mouthparts are the most common and efficient vectors…”
Get full text

Sieve element occlusion provides resistance against Aphis gossypii in TGR‐1551 melons by Peng, Hsuan‐Chieh, Walker, Gregory P.

“…Feeding behavior and plant response to feeding were studied for the aphid Aphis gossypii Glover on susceptible and resistant melons (cv. Iroquois and TGR‐1551,…”
Get full text

Novel program for automatic calculation of EPG variables by Garzo, Elisa, Álvarez, Antonio Jesús, Moreno, Aránzazu, Walker, Gregory P, Tjallingii, W Fred, Fereres, Alberto

“…The electrical penetration graph (EPG) technique is the most powerful tool for studying the feeding behavior of pierce-sucking insects. However, calculating…”
Get full text

Faba bean forisomes can function in defence against generalist aphids by MEDINA‐ORTEGA, KARLA J, WALKER, GREGORY P

“…Phloem sieve elements have shut‐off mechanisms that prevent loss of nutrient‐rich phloem sap when the phloem is damaged. Some phloem proteins such as the…”
Get full text

Feeding disruption of potato psyllid, Bactericera cockerelli, by imidacloprid as measured by electrical penetration graphs by Butler, Casey D., Walker, Gregory P., Trumble, John T.

“…The potato psyllid, Bactericera cockerelli (Sulc) (Hemiptera: Triozidae), is a serious pest of potatoes that can cause yield loss by direct feeding and by…”
Get full text

Penetration of faba bean sieve elements by pea aphid does not trigger forisome dispersal by Walker, Gregory P., Medina-Ortega, Karla J.

“…Immediately after their stylets penetrate a phloem sieve element, aphids inject saliva into the sieve element for approximately 30–60 s before they begin to…”
Get full text

Sharpshooter X Wave: Correlation of an Electrical Penetration Graph Waveform with Xylem Penetration Supports a Hypothesized Mechanism for Xylella fastidiosa Inoculation by Backus, Elaine A, Holmes, Wendy J, Schreiber, Fred, Reardon, Brendon J, Walker, Gregory P

“…Electrical penetration graph (EPG) monitoring is the most rigorous means of observation and quantification of feeding by piercing-sucking arthropods. Previous…”
Get full text

Bemisia argentifolii (Homoptera: Aleyrodidae) Colonization on Upland Cottons and Relationships to Leaf Morphology and Leaf Age by Chu, Chang-Chi, Freeman, Thomas P, Buckner, James S, Henneberry, Thomas J, Nelson, Dennis R, Walker, Gregory P, Natwick, Eric T

“…We compared Bemisia argentifolii Bellows & Perring colonization on Stoneville (ST) 474 and Deltapine (DPL) 5415 cottons, Gossypium hirsutum L., in the field…”
Get full text

HOST PLANT RESISTANCE TO WHITEFLY IN SPRING MELON, 2008 by Natwick, Eric T., Walker, Gregory P.

Get full text

Chapter 228 - Salivary Glands by Walker, Gregory P.

“…This chapter discusses salivary glands in insects. Among insects, there are four pairs of glands associated with the mouth or oral cavity, although all four…”
Get full text

Composition of the Wax Particles and Surface Wax of Adult Whiteflies: Aleuroplatus coronata, Aleurothrixus floccosus, Aleurotithius timberlakei, Dialeurodes citri, Dialeurodes citrifolii, and Parabemisia myricae by Nelson, Dennis R, Walker, Gregory P, Buckner, James S, Fatland, Charlotte L

“…The external lipids produced by adult whiteflies consisted of “wax” particles adhering to body hairs and of surface lipids, largely wax esters. The wax…”
Get full text

Real-Time Classification of Streaming Sensor Data by Kasetty, S., Stafford, C., Walker, G.P., Xiaoyue Wang, Keogh, E.

“…The last decade has seen a huge interest in classification of time series. Most of this work assumes that the data resides in main memory and is processed…”
Get full text

Laboratory Bioassay of Systemic Insecticide Treated Tomato Foliage on Colorado Potato Beetle, 1981 by Walker, Gregory P., Simonet, Donald E., Chalfant, Richard B.

“…Abstract Tomatoes were seeded in rows 12 inches apart (30 seeds/ft) on April 8 at the Coastal Plain Station of the University of Georgia, Tifton. The tomatoes…”
Get full text

Access to information from the USSR and Eastern Europe by Walker, G.P.M.

“…Western users of information from and about the area: types and characteristics. Sources of published information in the area: organisation and control of…”
Get full text