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  • Cucumbers
    higher E C 4 5 mmhos in the coir bag from the previous crop the demand for water was very high Roots were not enough to support required water uptake resulting in leaf damage Leaf cells just collapsed Growers should

    Original URL path: http://agga.ca/alerts/52-cukes-2007.html?tmpl=component&print=1&layout=default&page= (2016-04-28)
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  • Alberta Greenhouse Growers Association
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    Original URL path: http://agga.ca/component/mailto/?tmpl=component&template=elegance&link=dfe04b2342909f9fc09b8385326c6e08e39dea67 (2016-04-28)
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  • Downy Mildew of Basil
    from Europe to USA and then it has come to Canada as well through purchase of seeds from US sources What do we know about this disease To keep it simple one thing we know that is a seed borne disease and high humidty and poor air circulation in the crop will encourage its development The symptoms were more visible when cloudy and rainy weather was prevalent Understanding these two facts will help to control or reduce the incidence of the disease Also we know that this group of mildews are specific to their hosts and don t move to other crops So there was no danger that the disease will spread to bedding plants or tomatoes What actions were recommended to the growers It was suggested to contact the seed supplier and bring to their attention the fact about the seed borne nature of this disease The response from one source was we did not know about it and nobody else has reported this problem That is a typical legal response I encouraged the growers to check out sources in Europe and see if they are aware of the problem and if they can supply disease free seeds The grower installed circulation fans and also a humidity meter was purchased Heavily infected crops were removed from the greenhouse What about the use of any fungicide No fungicide was registered for use on Downy Mildew of Basil I contacted Dr Ron Howard and learned that Ontario has this problem with the field grown Basil did not realize that crop is worth close to 8 0 milion and were thinking of submitting a minor use requisition of two fungicides Alberta growers were also interested in acquiring these two fungicides and worked on developing the proposal together The Alberta Greenhouse Growers Association

    Original URL path: http://agga.ca/alerts/80-downy-mildew-basil.html (2016-04-28)
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  • Downy Mildew of Basil
    I investigated more and found out that this fungus is seed borne and it has come from Europe to USA and then it has come to Canada as well through purchase of seeds from US sources What do we know about this disease To keep it simple one thing we know that is a seed borne disease and high humidty and poor air circulation in the crop will encourage its development The symptoms were more visible when cloudy and rainy weather was prevalent Understanding these two facts will help to control or reduce the incidence of the disease Also we know that this group of mildews are specific to their hosts and don t move to other crops So there was no danger that the disease will spread to bedding plants or tomatoes What actions were recommended to the growers It was suggested to contact the seed supplier and bring to their attention the fact about the seed borne nature of this disease The response from one source was we did not know about it and nobody else has reported this problem That is a typical legal response I encouraged the growers to check out sources in Europe and see if they are aware of the problem and if they can supply disease free seeds The grower installed circulation fans and also a humidity meter was purchased Heavily infected crops were removed from the greenhouse What about the use of any fungicide No fungicide was registered for use on Downy Mildew of Basil I contacted Dr Ron Howard and learned that Ontario has this problem with the field grown Basil did not realize that crop is worth close to 8 0 milion and were thinking of submitting a minor use requisition of two fungicides Alberta growers were also interested in

    Original URL path: http://agga.ca/alerts/80-downy-mildew-basil.html?tmpl=component&print=1&layout=default&page= (2016-04-28)
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  • Alberta Greenhouse Growers Association
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    Original URL path: http://agga.ca/component/mailto/?tmpl=component&template=elegance&link=fac4634e2f6eb1ac09099f197b2a14131784faf7 (2016-04-28)
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  • Geranium Alert
    In this case pH was 6 5 but E C on leach was 4 5 mmhos cm If you are feeding constantly at over 300 ppm nitrogen then either you leach every time with the fertilizer solution meaning that at least 20 of fertilizer solution leaches out or introduce plain water feeding at every fourth watering BACK Prev Next tweet Research Sections Grower Alerts Research Extension Most Popular Join AGGA

    Original URL path: http://agga.ca/alerts/64-geranium-leach.html (2016-04-28)
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  • Geranium Alert
    edge burning In this case pH was 6 5 but E C on leach was 4 5 mmhos cm If you are feeding constantly at over 300 ppm nitrogen then either you leach every time with the fertilizer solution meaning

    Original URL path: http://agga.ca/alerts/64-geranium-leach.html?tmpl=component&print=1&layout=default&page= (2016-04-28)
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  • Alberta Greenhouse Growers Association
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    Original URL path: http://agga.ca/component/mailto/?tmpl=component&template=elegance&link=9f93e4f68b199a45d84cbe16a3c12ece14e69612 (2016-04-28)
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