ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] Fig. 1. Effective natural photoperiod at Ottawa (latitude, 45 34') in relation to seasonal activity of P. maculipennis, 1960-64 The diamondback moth is a cosmopolitan species, occurring almost everywhere where cruciferous crops are grown. In temperate climates it has two to seven generations per ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/210217a0
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