Rosacae

Description:

This Martin Frobisher rose is located in the rose garden on campus at Olds. It is sitting in a very sunny spot amongst other bushes of it's own genus, as well as several other variations of explorer roses. The Martin Frobisher is a broadleaf deciduous shrub. The Martin Frobisher belongs to the rosacae family; it is considered one of the wandering roses that were developed to be hardy enough to stand up to the cold climates experienced in the winter. This specific shrub looks like it is in alright condition; however many of the blooms have browned and shrivelled and the buds themselves look a bit dried and crusty.

Habitat:

The soil around the base of the bush has a generous amount of mulch which should keep in both heat and moisture to ensure the plants well being is maintained. Canadian explorer roses were bred to be quite hardy and do very well in the extremes climate changes that we experience in Alberta. This Martin Frobisher seems to be in a really great spot, receiving a very generous amount of sunlight throughout the day, which is perfect because they prefer full sun and tolerate partial shade. This bush is grown within a border (the sidewalk through the garden acts as its border). It almost acts as a hedge because of the size of the shrub, the amount of shoots from the rooting system belong is indicative of its name, obviously expanding and "exploring" the area in which it is planted.

Notes:

The Martin Frobisher is resistant to many ailments, with an exception of black spot (diplocarpon rosae) -to which I think this particular rose bush is experiencing a mild case of. This Martin Frobisher seems to be in the perfect growing conditions; however according to the Missouri Botanical Garden's website, rose bushes can become infected When exposed to a significant amount of water over a long duration of time. They say that when the leaves on a rose bush remain wet for up to more than seven hours they become susceptible to the fungus commonly known as black spot. Because of the apparent black spots on many of the leaves, I would make the guess that this is what is ailing the shrub. Missouri botanical also went on to say that black spot also shows itself On the leaves that have fallen off of the rose; they will likely have a yellow discolouration and patchiness to them. In one of the above photos, this is shown. To ensure the future health of this rose I recommend taking action through the use of spraying a vegetable or mineral oil directly onto the plant. An expirement was done and recorded in the Acta Scientarium Polonorum. Hortorum Cultus. The study observed the effects of mineral and veg oils on the production of spores of black spot and found that they were all quite capable of reducing the spores. The 2 most effective oils were mineral oils called Olemix 84 EC and Sunspray 850 EC. I think this would be the best way to trea the mild case of black spot on is Martin Frobisher. On another note I had trouble citing a link that was neither Wikipedia or encyclopedia of life so I will embed it below. http://ezproxy.aoac.talonline.ca/login?u...