Plum aphids.
Contributors: Dicker, G H L.; Great Britain. Ministry of Agriculture Fisheries and Food.
Edition: Revised ed / revised by G.H.L. Dicker.
Series: Advisory leaflet; 641
Publisher: Ministry of Agriculture, Fisheries and Food
Published: 1979
Place of publication: Pinner
Language: eng
Notes: Replaces Advisory Leaflet 34.