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These examples of ticklish timing are extreme. They are cited early in our account of anti-parasite strategy to emphasize that, in this warfare as in any other, timetables are critical. The seasons govern the foes' behavior and therefore our own. RIGS Successful chemical warfare in trees consists in getting there at the right time with the right material. For not to exceed $25 the home owner can acquire hardware that will deter any invasion up to fifteen feet (add a stepladder for five feet more). To protect his natural pump-fountains he needs only a mechanical pump-fountain through which his arm can supply about twenty pounds of pressure to a column of liquid nozzled into a rain or mist. |
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