The experimental study was carried out during the period 2013-2014 in a young lavender field on a soil type of leached chernozem in Tsarichino village, Balchik municipality, Dobrich region - Bulgaria. The test was performed by means of a block method with four repetitions; experimental field area - 15 m2 . The experience includes six variants: 1) Economic control - untreated, with three hand hoops; 2) Devinol 4F – 4l/ ha; 3) Stomp New 330 SEC -/ 4l/ha; 4) Pledge 50 WP -0,08 kg/ha; 5) Goals 2E + Dual Gold 960 EC - 1 + 1,5 l / ha; 6) Merlin Flex 480 CK – 0,42 l/ha. The aim of the present study was to develop an efficient weed control scheme in a young lavender field, depending on the species composition and density. The analysis of the results showed; the applied herbicides exhibit good efficacy against the annual broad-leaved weeds and a weaker control of the perennial weeds. The best control of the annual and perennial weeds in a young lavender field was reported in the variants with the herbicides Devrinol 4F applied at the rate of 4l/ha and Pledge 50 WP at the rate of 80g/ha. The applied soil herbicides did not show a negative effect on the annual growth of the lavender plants.

lavender, weeds, herbicides, growth plants

field crops and pastures

Presentation: poster