How to Sample Douglas-fir Tussock Moth Larvae
Author | : Richard R. Mason |
Publisher | : |
Total Pages | : 20 |
Release | : 1979 |
Genre | : Caterpillars |
ISBN | : |
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Author | : Richard R. Mason |
Publisher | : |
Total Pages | : 20 |
Release | : 1979 |
Genre | : Caterpillars |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : 16 |
Release | : 1949 |
Genre | : Agriculture |
ISBN | : |
Set includes revised editions of some issues.
Author | : Richard Randolph Mason |
Publisher | : |
Total Pages | : 15 |
Release | : 1979 |
Genre | : |
ISBN | : |
Author | : Richard R. Mason |
Publisher | : |
Total Pages | : 15 |
Release | : 1979 |
Genre | : Douglas fir tussock moth |
ISBN | : |
Author | : Richard R. Mason |
Publisher | : |
Total Pages | : 16 |
Release | : 1977 |
Genre | : Douglas-fir tussock moth |
ISBN | : |
Author | : Richard R. Mason |
Publisher | : |
Total Pages | : 16 |
Release | : 1978 |
Genre | : Douglas-fir tussock moth |
ISBN | : |
A sequential sampling plan is described for identifying tussock moth populations which, at a maximum expected rate of increase, could be within 1 year of outbreak status. The plan uses a new technique of sampling early larvae by the nondestructive examination of lower crown foliage. Larvae at inconspicuous low densities are classified into relatively low or high categories by their frequency of occurrence on foliage samples. The sampling plan is applied independently on individual plots to classify the density of each plot. It is an appropriate method for quickly screening suboutbreak populations in ground evaluation surveys.
Author | : |
Publisher | : |
Total Pages | : 12 |
Release | : 1949 |
Genre | : Agriculture |
ISBN | : |
Set includes revised editions of some issues.
Author | : |
Publisher | : |
Total Pages | : 20 |
Release | : 1993 |
Genre | : Douglas fir |
ISBN | : |
Author | : B. E. Wickman |
Publisher | : |
Total Pages | : |
Release | : 1979 |
Genre | : |
ISBN | : |
Author | : Richard R. Mason |
Publisher | : |
Total Pages | : 32 |
Release | : 1994 |
Genre | : Douglas fir tussock moth |
ISBN | : |