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A 1987 study found evidence of a possible biocontrol strategy for bacterial wilt of turf grass. The researchers found that antiserum to Pseudomonas fluorescens or Erwinia herbicola from hosts which have survived infections by the corresponding pathogens is capable of reducing wilt symptoms in turf grass caused by Xanthomonas translucens. The ...
Leaf spots can vary in size, shape, and color depending on the age and type of the cause or pathogen. Plants, shrubs and trees are weakened by the spots on the leaves as they reduce available foliar space for photosynthesis. Other forms of leaf spot diseases include leaf rust, downy mildew and blights. [4]
Forsythia are deciduous shrubs typically growing to a height of 1–3 m (3 ft 3 in – 9 ft 10 in) and, rarely, up to 6 m (20 ft) with rough grey-brown bark. The leaves are borne oppositely and are usually simple, though sometimes trifoliate with a basal pair of small leaflets; they range between 2 and 10 cm (0.79 and 3.94 in) in length and, rarely, up to 15 cm (5.9 in), with a margin that is ...
Fall is the best time to fertilize your lawn if you live in the north. Cool-season grasses, such as bluegrass, fescue, and ryegrass, respond well to feeding in early September and late fall (end ...
Some leaves on the grass aren't an issue. But if they pile up and you can't see the grass, that can lead to problems. "Do not leave piles of leaves on your lawn," says McMahon. "This might smother ...
If it looks like someone sprinkled flour or baby powder over your grass, chances are good that your lawn has a common disease called powdery mildew. The post If Your Grass is Turning White, This ...
Wilt diseases in woody plants tend to fall into two major categories, those that start with the branches and those that start with the roots. Those that start with the branches most often start with pathogens that feed on the leaves or bark, those that start with the roots start with wounding or direct entry by the pathogen into the roots, some ...
This native shrub has small glossy leaves that turn many shades of red in the fall. Both red chokeberry and black chokeberry have clusters of small white flowers in spring and small berries in the ...