Nikolova, Ivelina, and Natalia Georgieva. 2014. “Effects of Biological Insecticides NeemAzal T/S and Pyrethrum FS EC and Their Interaction With Organic Products in Treatments of Pea Aphid Acyrthosiphon Pisum (Harris) (Hemiptera: Aphididae) on Pisum Sativum (L.)”. Pesticides and Phytomedicine / Pesticidi I Fitomedicina 29 (3). https://doi.org/10.2298/pif.v29i3.6385.