. Cranberries; : the national cranberry magazine. Cranberries. Supt. Doughty removes glass slide inserted into test tube of bazooka- like spore trap for determining when to spray for tip blight. Board dike behind him is used in floodng bog for harvest when berries are held high by water for picking with "; Bazookas and Sprays for Cranberry Blig By ROBERT L. SINCOOK, Field Editor (Editor's Note: The following consists of excerpts of an article in "The Washington ;) Strange "weathervanes" that look like bazookas were fixtures this summer in Washing
. Cranberries; : the national cranberry magazine. Cranberries. Supt. Doughty removes glass slide inserted into test tube of bazooka- like spore trap for determining when to spray for tip blight. Board dike behind him is used in floodng bog for harvest when berries are held high by water for picking with "; Bazookas and Sprays for Cranberry Blig By ROBERT L. SINCOOK, Field Editor (Editor's Note: The following consists of excerpts of an article in "The Washington ;) Strange "weathervanes" that look like bazookas were fixtures this summer in Washington's cranberry bog country of Long Beach and Grayland. They save a lot of work in pinpointing the time to spray for control of vine- tip blight. The gadgets are spore traps, explained Dr. Folke Johnson, plant pathologist cf Western Washington experiment station, during- field day at the Cranberry- Blueberry experim'ant station, Long Beach. He and the Long Beach station staff designed them so that wind-blown spores of the fungi which cause blight of the cranberry vines' upright tips can be collected within the tube-trap on a glass slide coated with a sticky substance. The "bazookas" trap the spores that in 1955 had to be collected by picking numerous upright shoots of the vines for laboratory examination. The slides were collected peri- odically and sent to Johnson's laboratory for checking on the stage of spore development. When SHIPPING CONTAINERS Michael Dewire TEMPLE STREET DUXBURY, MASS. conditions are right for actio Johnson sent word it's time t spray. This advice was then cir culated among growers by th Pacific county extension service' specialist ir. cranberries, Ralp Tidrick. WashingLcn State college sta tions have been doing research o tip blight about three years. Dur ing- the years when control of ti blight will have to be done b; spraying it's probable that bazoo ka spore traps and these spra, "forecasts" will remain a part o cranberry culture.
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