Evaluation of phytotoxicity and efficiency of dicamba in suppression of broadleaf weed in the corn

Abstract

The aim of this work is to define the phytotoxicity and efficiency of dicamba based herbicides (preparation DICAMBA 480 SL) and possiblity of its application for foliar suppression of broadleaf weeds in the corn crops. During 2011, on the location of Zemun Polje is examined efficiency of this preparation through carrying out of field experiments in accordance with the standard EPPO methods. Trial has been carried out on the soil type chernozem. The experiment included 4 treatments: two for efficact (DICAMBA 480 SL 0,5 and 0,7 l/ha), one for phytotoxicity (DICAMBA 480 SL 1,4 l/ha) and one as the standard (PLAMEN 0,7 l/ha). Preparation is applied foliary, when the corn used to have 4-5 leafs, and weeds 2-5 lefs. Dicamba as selective systemic hormonal herbicide from chemical group of the derivates of benzoic acid does not manifest phytotoxicity towards corn, if applied in recommended quantities and within recommended application time. Results of these experiments denoted good efficiency of dicamba (preparation DICAMBA 480 SL).

Cilj ovog rada je bio da se utvrdi fitotoksičnost i efikasnost herbicida dikambe (preparat DICAMBA 480 SL) i mogućnost njegove primene za folijarno suzbijanje širokolisnih korova u usevu kukuruza. Tokom 2011. godine na lokalitetu Zemun Polje ispitivana je efikasnost ovog preparata izvođenjem poljskih ogleda u skladu sa standardnom EPPO metodom. Ispitivanje je vršeno na zemljištu tipa černozem. U ogled je bilo uključeno 4 tretiranja: dva za efikasnost (DICAMBA 480 SL 0,5 i 0,7 l/ha), jedan za fitotoksičnost (DICAMBA 480 SL 1,4 l/ha) i jedan kao standard (PLAMEN 0,7 l/ha). Preparat je primenjen folijarno, kada je kukuruz imao 4-5 listova, a korovi 2-5 listova. Dikamba kao selektivni sistemični hormonalni herbicid iz hemijske grupe derivata benzoeve kiseline, ne ispoljava fitotoksičnost prema kukuruzu, ako se primeni u preporučenim količinama i u preporučeno vreme primene. Rezultati ovih ogleda ukazali su na dobru efikasnost dikambe (preparat DICAMBA 480 SL).