The Use of Adsorbents and Simazine on Newey Planted Strawberries

Summary. A series of field trials was conducted to determine if the tolerance of newly planted strawberry runners to simazine could be increased by placing adsorbents in the vicinily of the root zone at planting time. Powdered steam‐activated charcoal was found to be the most suitable of seven adsorbents tested. Dipping the roots of runners in charcoal before planting was more effective and practicable than placing a similar quantity of charcoal around each runner at planting time. No significant damage was recorded in several trials in which dipped runners were sprayed with simazine at 1 lb/ac within a few days of planting. Although new roots are likely to take up the herbicide as they grow away from the charcoal‐protected area around the plant, the protection provided by the adsorbent appears to be sufficient to enable the young plants to develop satisfactorily. Utilisation d'adsorbants et de simazine sur des fraisiers récemment plantés