Avocado Diseases in Florida

ISBN: 9781334008030 出版年：2016 页码：48 H E Stevens R B Piper Forgotten Books

In these experiments 3 — 3 — 50 bordeaux mixture freshly prepared in the field was used. Calcium caseinate was added to the spray solutions at the rate of 2 pounds to each 200 or 300 gallons of Spray material. The spray was applied with guns from a power sprayer at a. Pressure of 360 to 400 pounds, with a thoroughness comparable. To the best commercial practice. Many of the avocado trees were tall and slender in habit of growth reaching a. Height of 40 to 50 feet, and it was only. By means of a good spray gun and high pressure. That the tops of such trees could be. Thoroughly sprayed (pl.