Investigation of the efficiency and selectivity of some herbicides applied on cape gooseberry (Physalis peruviana L.)

Abstract

The main goal of the present paper was to study the possibilities for application of herbicides during vegetation of cape gooseberry. Herbicides Afalon 100 and 150 ml/da and Agil 85 and 150 ml/da were applied at the moment of the beginning of bud formation on the Plovdiv variety. The control was not treated, but it was hoed. Twenty days later, species, number and weight of weeds; number of dead cape gooseberry plants; weight, diameter and length of fruits (in botanical maturity) were investigated. Productivity and chemical components were determined. The highest effectiveness, lowest weed number and weight were observed when using Afalon 150 ml/da which controls annual dicotyledon weeds. Total weeds weight decreased mainly due to Afalon. The highest percentage of dead plants was established after application of 150 ml/da Afalon. The highest productivity was established in control. Investigated herbicides, Afalon and Agil, did not demonstrate satisfactory selectivity in cape gooseberry.

Keywords

• cape gooseberry
• herbicides
• fruit
• selectivity
• yield