Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Wulf, A., and U. Scheidemann. 1990. Zur Wirksamkeit von Neem-Extrakten gegen Borkenkäfer [On the effectiveness of neem extracts against bark beetles]. Nachrichtenblatt des Deutschen Pflanzenschutzdienstes 42:118-122.
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