Plant Pathology

  67- MANAGEMENT OF SUGAR BEET POWDERY MILDEW BY FOLIAR SPRAYING OF POTASSIUM PHOSPHATE SALTS

Mosa, A.A

  68- EPIDEMIOLOGY AND CONTROL OF FIRE BLIGHT DISEASE IN PEARS

Abd-El-Khair, H. and H.I. Seif El-Nasr

  69- EVALUATION OF FERTILIZATION AND ORGANIC  TREATMENTS ON CONTROLLING POTATO BACTERIAL WILT DISEASE

Abd El-Ghafar, N.Y. and Waffa M. Abd El-Sayed

Plant Protection

  70- New Technology For Optimizing Production of Spodoptera littoralis Nuclear Polyhedrosis Virus

Bekehit, H.K.M.; Amal, M. Mabrouk and F. Abo El-Abbas

  71- Toxicity of certain weed extracts and their   combinations with aphicides against Aphis gossypii Glov

Ali, I.H.H. and Rodina A. Hassan