Differential colonization of wheat cultivars by two biotypes of Russian wheat aphid (Homoptera: Aphididae)

2005 ◽  
Vol 12 (5) ◽  
pp. 341-349 ◽  
Author(s):  
JAWWAD A. QURESHI ◽  
JAWAHAR L. JYOTI ◽  
J. P. MICHAUD
Keyword(s):  
Russian Wheat Aphid ◽  
Wheat Cultivars

Virulence of Two Russian Wheat Aphid Biotypes to Eight Wheat Cultivars at Two Temperatures

Crop Science ◽  
2006 ◽  
Vol 46 (2) ◽  
pp. 774-780 ◽  
Author(s):  
J. L. Jyoti ◽  
J. A. Qureshi ◽  
J. P. Michaud ◽  
T. J. Martin
Keyword(s):  
Russian Wheat Aphid ◽  
Wheat Cultivars ◽  
Two Temperatures

Yield Response and Categories of Resistance to Russian Wheat Aphid in Four Dn4 Hard Red Winter Wheat Cultivars

2005 ◽  
Vol 98 (2) ◽  
pp. 588-594 ◽  
Author(s):  
Terri L. Randolph ◽  
Frank B. Peairs ◽  
Michael Koch ◽  
Cynthia B. Walker ◽  
Jesse R. Stubbs ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Russian Wheat Aphid ◽  
Yield Response ◽  
Wheat Cultivars ◽  
Hard Red Winter Wheat ◽  
Winter Wheat Cultivars ◽  
Red Winter Wheat

scholarly journals Russian Wheat Aphid Distribution in Wheat Production Areas: Consequences of Management Practices

2021 ◽  
Author(s):  
Astrid Jankielsohn
Keyword(s):  
Chemical Control ◽  
Large Scale ◽  
Management Practices ◽  
Negative Impact ◽  
Resistance Breeding ◽  
Russian Wheat Aphid ◽  
Wheat Cultivars ◽  
Active Ingredients ◽  
Production Areas ◽  
Continuous Use

Russian wheat aphid (RWA) is an international pest on wheat and occurs in most countries where large scale wheat cultivation is practiced. Consequently, considerable efforts have been made to manage RWA globally. The two management options used currently are chemical control and breeding for deployment of resistant wheat cultivars. There are however drawbacks to both of these management practices. Chemical control has a negative impact on the environment, especially other insect groups such as predators, pollinators and decomposers. With widespread and continuous use of the same active ingredients, there is the possibility that RWA can build up resistance against these specific active ingredients. The drawback with resistance breeding is that certain RWA populations can overcome the resistance in the wheat, resulting in new biotypes virulent to the resistant wheat cultivars.

Protein Composition of Wheat Apoplastic Fluid and Resistance to the Russian Wheat Aphid

1996 ◽  
Vol 23 (5) ◽  
pp. 645 ◽  
Author(s):  
AJVD Westhuizen ◽  
Z Pretorius
Keyword(s):  
Protein Composition ◽  
Triticum Aestivum L ◽  
Russian Wheat Aphid ◽  
Diuraphis Noxia ◽  
Wheat Cultivars ◽  
Time Saving ◽  
Aphid Infestation ◽  
Sds Page ◽  
Apoplastic Fluid ◽  
Related Proteins

The protein composition of intercellular fluids from three different wheat cultivars (Triticum aestivum L. cvv. Tugela DN, Molopo DN and Betta DN) with resistance to the Russian wheat aphid, Diuraphis noxia (Mordvilko) and the corresponding near-isogenic susceptible cultivars (Tugela, Molopo and Betta) were studied under conditions of infestation and non-infestation. The aim was to gain information on the mechanism of resistance and the possible presence of molecular markers of resistance. Aphid infestation induced the accumulation of specific corresponding proteins in the intercellular fluids of resistant cultivars only. The infestation-related proteins were of different molecular mass ranges (28-33; 22-24; 18.5-19.5 and 15.5-17 kDa). Some were serologically related to PR proteins. We suspect that the infestation-related proteins are involved in resistance to the Russian wheat aphid. Although not particularly time saving, the intensified bands of infestation-related proteins on SDS-PAGE gels may be useful for determining resistance.

Sign in / Sign up

Export Citation Format

Share Document