34 research outputs found
Studies on forecasting the attack by wheat blossom midges, Contarinia tritici (Kirby) and sitodiplosis mosellana (GĂ©hin) (Dipt., Cecidomyidae)
No full textDie AnfĂ€lligkeit verschiedener Sommerweizensorten gegenĂŒber Befall durch die beiden WeizengallmĂŒ ckenarten (Dipt., Cecidomyidae)
No full textThe response of holocyclic populations of cereal aphids (Hom., Aphididae) to the sowing date of wheat. With observations on the effects of heavy precipitations
No full textThe effects of three insecticides upon the terrestrial predaceous arthropods in winter-rape fields
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En dĂ©but de saison la prĂ©dation modifie lâinstallation des pucerons et la dissĂ©mination du virus de la jaunisse sur la betterave Ă sucre
No full textSurveys of cereal diseases and pests in the Netherlands. 6. Occurrence of insect pests in winter wheat
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