S. Masheva, N. Velkov, N. Valchev, V. Yankova Abstract. Screening of plant protection products (PPP) against downy mildew in cucumbers Pseudoperonospora cubensis (Berkeley & M. A. Curtis) Rostovzev was carried out during the period 2006-2011 in the “Maritsa” Vegetable Crops Resear

S. Masheva, N. Valchev, V. Yankova Abstract. Effectiveness of the botanical products for plant protection Timorex 66 EC and Timorex Gold against late blight (Phytophthora infestans) and early blight (Alternaria solani), of the products Pyros, Pyrethrum FS EC and NeemAzal T/S against g

V. Yankova, S. Masheva, B. Boev, K. Toskov Abstract. The endoparasite Encarsia formosa Gah. is one of the well-known and frequently used bioagents for control of greenhouse whitefly (Trialeurodes vaporariorum Westw.). The effect of many applied pesticides is negative towards this usef