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Norway maple, red maple and sugar maple are the species most commonly affected. The trouble often starts after insect-induced defoliation, which weakens the trees and makes them more susceptible to secondary pathogens. Early signs of decline include small or scorched foliage, and premature fall colors on some of a tree's branches.
Slime flux, also known as bacterial slime or bacterial wetwood, is a bacterial disease of certain trees, primarily elm, cottonwood, poplar, boxelder, ash, aspen, fruitless mulberry and oak. A wound to the bark, caused by pruning, insects, poor branch angles or natural cracks and splits, causes sap to ooze from the wound. Bacteria may infect ...
Lupinus albus beans, cooked and pickled in brine.. The beginning of lupin cultivation in the Old World is sometimes associated with Ancient Egypt. [4] It is more likely, however, that white lupin was originally introduced into cultivation in ancient Greece, where its greatest biodiversity was concentrated and where wild-growing forms have been preserved until today (ssp. graecus). [5]
Eutypella canker is a plant disease caused by the fungal pathogen Eutypella parasitica. This disease is capable of infecting many species of maple trees and produces a large, distinguishable canker on the main trunk of the tree. Infection and spread of the disease is accomplished with the release of ascospores from perithecia.
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The following species in the flowering plant genus Lupinus, the lupins or lupines, are accepted by Plants of the World Online. [1] Although the genus originated in the Old World, about 500 of these species are native to the New World, probably due to multiple adaptive radiation events.
Aspen trunk rot is a fungal disease that causes stem decay heart rot of living aspen trees. The pathogen that causes this disease is the fungus Phellinus tremulae . Most of the symptoms of this disease are internal, with the only external signs of a diseased aspen being fruiting bodies called conks.
Spalting is divided into three main types: pigmentation, white rot, and zone lines.Spalted wood may exhibit one or all of these types in varying degrees. Both hardwoods and softwoods can spalt, but zone lines and white rot are more commonly found on hardwoods due to enzymatic differences in white rotting fungi.