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The name comes from the fact that the disease was first identified on olives. And it can be a serious disease on olives causing severe crop loss. The causal microorganism is a bacterium which survives in the galls.
Large black spots, usually irregular in shape, on leaves are Black Leafspot disease and are caused by a fungus. The small orange spots are Rose Rust, also caused by a fungus. There are actually several rusts that infest roses.
There are eleven known viruses that infect roses. And since all roses are propagated vegetatively (rootstocks, buds, cuttings), the viruses are propagated with the plant parts.
Many cool-season grasses, for example, bluegrass, bentgrass, ryegrass and others are susceptible to attack by a rust fungus. Within these grass groups, there are cultivars with different levels of resistance to attack.
Rose rust is caused by a fungus that infests the leaves of roses and causes the symptoms. Rose rust will cause defoliation of your rose bush and if the leaf drop is severe, it will in time affect the vigor of the bush and flower production.
There are definitely some flowering shrubs that seem to be preferred by hummingbirds as food sources. There are species of Grevillea, Zauschneria and Agastache that hummingbirds find very attractive. Cape honeysuckle ( Tecoma sp.), bottle brush ( Callistemon sp.), Alstromeria and Pelargonium sp.
There are several herbicide products available for broadleaved weed control in lawn grass. Most of these products contain 2,4-D and dicamba and are applied as a spray. There are also several Weed and Feed products sold as granular materials, which can be applied with a fertilizer spreader.
Actually, starting over will only temporarily get rid of your problem. If your lawn is in bad shape, starting over with a new lawn may be the best solution.
