Use of Basta 150 SL in strawberries
Polli Horticultural Institute of the Estonian Agricultural University, 69104 Karksi-Nuia, Estonia, e-mail: email@example.com
The experiment was carried out in the strawberry plantations of the Polli Horticultural Institute during two years, 2000–2001. ‘Bounty’ was the strawberry cultivar studied. The objective of the experiment was to evaluate the effectiveness of herbicide Basta 150 SL for problematic weeds and strawberry daughter plants. The strawberry plants were set in spring 1999, using black plastic mulch. In the experiment, the plot size was 30 m2 (2 x 15 m) and planting scheme 1.2 x 0.3 m. The following treatment variants were used: 1. Untreated (control); 2. Basta 150 SL 3l/ha; 3. Basta 150 SL 5l/ha. Each variant was represented with 4 replications. The herbicide was applied twice by means of a backpack sprayer: in May before blooming and in August when new weeds had grown. The results of the experiment indicated that due to Basta 150 SL weed infestation in strawberry plantation was decreased. It was noted that, in both treatment variants, Basta 150 SL destroyed nearly 90–96% of strawberry daughter plants. The results also showed that Basta 150 SL did not cause damage to strawberry plants and berries. The herbicide applied in two doses (5 l/ha and 3 l/ha) did not affect the strawberry yield negatively. It was established that in both treatment variants yields were increased by 26.9 and 29.2%, respectively. We noted that it was practical to use Basta 150 SL at the rate of 5 l/ha only in the case of appearing perennial weeds (Taraxacum officinalis, Cirsium arvense, Viola arvensis) in an orchard. For other weeds, the rate of herbicide 3 l/ha suited well.