2 Ergebnisse.

Excerpt from Studies on the Downy Mildew of Onions, and the Causal Organism, Peronospora Destructor (Berk.) CasparyFresh spores for use in these tests were obtained by spraying an infected plant in the greenhouse with water and placing it under a bell glass. For the night. On the following morning the fresh conidia that had been formed during the night were brought into suspension by dipping the mildewed leaves into water. In this manner only ...

Excerpt from Studies on the Downy Mildew of Onions, and the Causal Organism, Peronospora Destructor (Berk.) CasparyFresh spores for use in these tests were obtained by spraying an infected plant in the greenhouse with water and placing it under a bell glass. For the night. On the following morning the fresh conidia that had been formed during the night were brought into suspension by dipping the mildewed leaves into water. In this manner only ...