Vol. 10, Issue 9, 1956September 01, 1956 PDT
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Calico scale on walnuts: Problem of soft scales on walnut increasing but natural enemies still exert suppressing influence on calico scale
Calico scale on walnuts: Problem of soft scales on walnut increasing but natural enemies still exert suppressing influence on calico scale
A Michelbacher, S Hitchcock,
Michelbacher, A, and S Hitchcock. 1956. “Calico Scale on Walnuts: Problem of Soft Scales on Walnut Increasing but Natural Enemies Still Exert Suppressing Influence on Calico Scale.” California Agriculture 10 (9): 6–6.