Haku
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Pests of cultivated plants in Finland during 1988
(Agricultural Research Centre, 1989)
Notes on the toxicity of a commercial preparation of Bacillus thuringiensis var. thuringiensis Berliner on some Lepidoptera and Tenthredinidae larvae
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1967)
The effect of amino acids, vitamins and trace elements on the development of Acyrthosiphon pisum Harris (Hom., Aphididae)
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1967)