Wisconsin Horticulture

Wisconsin Horticulture

4.11 - 1251 ratings - Source

Two principles made the change ... First of all and after a period of many years, it was concluded that the concentrate sprays should be forced into the air stream so that ... upwards of 20, 000 cubic feet of air per minute to envelop and replace the air occupied by an average-size apple tree as ... An averaged-sized 20-year old apple tree requires, after petal-fall, about 20 gallons of spray for good coverage.

Title:Wisconsin Horticulture
Publisher: - 1950


You Must CONTINUE and create a free account to access unlimited downloads & streaming