Black Knot

Black Knot

B260/0059 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 22.4MB

Downloadable file size: 3.7MB

Price image Pricing

Please login to use the price calculator


Caption: Black Knot is a serious disease of plum trees. It is caused by the fungus, Dibotryon morbosum (also known as Apiosporina morbosa), which overwinters in knots on twigs and branches. In the spring, the fungus produces ascospores within tiny fruiting bodies on the surface of the knots. Wind spreads the ascospores for moderate distances. Those which land on green branches may germinate and cause infection if the twigs remain wet for a sufficient length of time. (Enhanced SEM, Microscope magnification 70x, image width: 1800 micrometers, bar: 200 micrometers).

Release details: Model release not required. Property release not required.

Keywords: apiosporina, apiosporina morbosa, ascospores, black knot, botany, dibotryon, dibotryon morbosum, disease, diseases, fungal infection, fungal infections, fungus, microscopy, morbosa, morbosum, nature, pathogens, pathology, plant, scanning electron micrograph, scanning electron microscopy, sem, sems, tree infection

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.