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Damage caused by Lygus rugulipennis Popp. (Heteroptera, Miridae), to Pinus sylvestris L. seedlings

J. Holopainen | 1986

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Gramine and free amino acids as indicators of fluoride-induced stress in barley and its consequences to insect herbivory

E. Hautala ; J. Holopainen | 1995

Barley leaves were sprayed with aqueous Na F, which caused accumulation of fluoride in the foliage, but no visible symptoms were detectable. No significant correlation was observed between foliar fluoride concentration and content of the indole [...]

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Host plants of the European tarnished plant bug Lygus rugulipennis Poppius (Het., Miridae)

J. Holopainen ; A. Varis | 1991

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