Subjects: *PLANT viruses; *GRAIN diseases & pests; *BARLEY yellow dwarf virusesFOSS, Will
تفاصيل العنوان
Subjects: *MINERAL oils; *PLANT viruses
Subjects: *BARLEY yellow dwarf viruses; *PLANT viruses; *BARLEY diseases & pestsSCOBIE, Allen
Subjects: *BARLEY yellow dwarf viruses; *PLANT viruses; *GRAIN diseases & pestsUNITED KingdomWALTERS, Keith
Subjects: *PLANT viruses; *BARLEY yellow dwarf viruses; *SPIDERSWALES
Subjects: *PLANT viruses; *BEET mosaic virus; *SUGAR beetsUNITED Kingdom
Subjects: *PLANT viruses; *AGRICULTURAL pests; *SEED potatoesNORTHERN EnglandNORTHING, Phil
Subjects: *BARLEY varieties; *BARLEY disease & pest resistance; *PLANT virusesUNITED KingdomNEW Farm Crops Ltd. ; NICKERSON-Advanta (Company) ; SAATEN-Union GmbH
Subjects: *CONTROL of agricultural pests & diseases; *PLANT viruses; *INTERNET
Subjects: *TESTING; *WEEDS; *PLANT virusesDALE, Finlay