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.)
Uticaj bioloških insekticida NeemAzal T/S i Pyrethrum FS EC i njihova interakcija sa organskim proizvodima u tretmanima Acyrthosiphon pisum (Harris) (Hemiptera:Aphididae) na Pisum sativum (L.)
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Author
Nikolova, Ivelina
Georgieva, Natalia
Keywords
Forage peaAcyrthosiphon
Biopesticides
Insecticides
Stočni grašak
Acyrthosiphon
biopesticidi
insekticidi
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Show full item recordAbstract
The efficacy and effects of two biological insecticides, NeemAzal T/S® and Pyrethrum
FS EC, applied individually and in combination with Polyversum (a biological growth
regulator and fungicide) and Biofa (an organic foliar fertilizer), in controlling Acyrthosyphon
pisum population density were studied. Nurelle D (a synthetic insecticide), applied alone
and in combination with Flordimex 420 (a synthetic growth regulator), was used as a
standard. The products were applied once (at budding stage) or twice (at budding and
flowering stages). Twenty-four variants were studied. The interaction of Pyrethrum with
Biofa was the most efficient variant of the biological products, causing a reduction in
aphid density that reached 48.2% after double treatment, while Pyrethrum+Polyversum
(42.5%) was the second most successful treatment. The combination of Pyrethrum with
Biofa achieved the highest efficacy and synergism and their efficacy approached that of
the synthetic insecticide. Upoređivana je efikasnost i interakcija bioloških insekticida NeemAzal T/S i Pyrethrum FS
EC u suzbijanju Acyrthosyphon pisum u organskoj proizvodnji Pisum sativum tokom tri godine.
Insekticidi su primenjeni pojedinačno i u kombinaciji sa Polyversum (biološki regulator
rasta i fungicid) i Biofa (organsko folijarno đubrivo). Nurelle D (sintetički insekticid) primenjen
je kao standard pojedinačno i u kombinaciji sa Flordimex 420 (sintetički regulator rasta).
Prskanje je sprovedeno jednom (u fazi pupoljka) i dva puta (u fazama pupoljka i cvetanja).
Ispitane su 24 varijante. Najefikasnija varijanta među organskim proizvodima bila je interakcija
Pyrethrum+Biofa, gde je smanjenje gustine vašiju dostiglo 48.2% u dvokratnom prskanju,
dok je sledeća bila Pyrethrum+Polyversum (42.5 %). Najveću efikasnost i sinergizam pokazala
je kombinacija Pyrethrum+Biofa, čija je efikasnost bila bliska insekticidu Nurelle D.