The American florist : a weekly journal for the trade . ealthy seedlings proved to be activeparasites. We are not here givingour final word on these fungi as moreexperiments are still under working on the diseases of theroots and stems we have also inves-tigated the soil which was sent tous by the grower. Accordingly, a fewsterilized pots were filled with the soiland sterilized seeds planted in it, anda few other sterilized pots were filledwith sterile soil and also sown withsterilized seeds. The same amount ofseeds were planted in both lots ofpots. After ten days the seeds in theste
The American florist : a weekly journal for the trade . ealthy seedlings proved to be activeparasites. We are not here givingour final word on these fungi as moreexperiments are still under working on the diseases of theroots and stems we have also inves-tigated the soil which was sent tous by the grower. Accordingly, a fewsterilized pots were filled with the soiland sterilized seeds planted in it, anda few other sterilized pots were filledwith sterile soil and also sown withsterilized seeds. The same amount ofseeds were planted in both lots ofpots. After ten days the seeds in thesterile soil germinated and grew wellwhile the seeds in the sick soil ger-minated but very sparingly. Uponcloser examination these non-germi-nated seeds were found to be rottedand of those few plants which grewone half had their roots nearly culturing these roots the samefungi were obtained. Cultures madefrom this sick soil produced the samefungi as those found on the diseasedroots and stems. Our experiments are igi2. The American Florist. 1513. COOK COUNTY FLORISTS ASSOCrATIONS PICNIC, KARTHAUSERS GROVE, CHICAGO, JULY 14, 1912. as yet incomplete but the results ob-tained so far point to the fact thatthese fungi in the soil are the causeof this soil sickness. The debrisfound in this sick soil also readilsyielded a pure culture of the sclero-tinia libertinia of which I hare .iustspoken. All these fungus diseasesjust described can also at any timeand under certain climatic conditionsattack the sweet peas grown out ofdoors. Complaints of another grower ofsweet peas under glass reached following are his own wordswhich speak for themselves: I growsweet peas under glass for cut flow-ers and have been seriously troubledwith a disease that spots or mottlesthe foliage with a yellow color, dis-figuring the foliage and flowers andas it becomes pronounced a diseasedplant never recovers. Both the weakwinter blooming and the strongerGrandiflora or Spencer type are sub-ject alik
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectfloriculture, bookyea
