tag:blogger.com,1999:blog-8755874589885813577.post4205612996107888342..comments2024-02-11T03:06:59.433-08:00Comments on A Private Portrait Miniature Collection: Nicholas Freese (1761/1762-1831)portraitminiatureclubhttp://www.blogger.com/profile/14802953277995174913noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-8755874589885813577.post-71249583646765657942011-08-31T01:28:06.298-07:002011-08-31T01:28:06.298-07:00Thank you, Lisa! It is always good to know that p...Thank you, Lisa! It is always good to know that people enjoy our site. Best wishes. Roger and Carmelaportraitminiatureclubhttps://www.blogger.com/profile/14802953277995174913noreply@blogger.comtag:blogger.com,1999:blog-8755874589885813577.post-8191889871457909492011-08-19T11:38:41.201-07:002011-08-19T11:38:41.201-07:00What an interesting story! The plant-feeders seem ...What an interesting story! The plant-feeders seem unlikely to colonise pictures. About half the known thrip species feed on fungi and there's one group that feeds exclusively on fungal spores. Thrips, or thunderflies, can spread rapidly into new areas and they do like tight spaces. <br /><br />Without knowing when the dividing line between infested and thrip-free frames occurs, my immediate suspicion is drawn to the late 19th century introduction of paper products made from chemical wood pulp, which first appeared in the 1870s. The white rot fungus is capable of growing on cardboard or paper and actually thrives in chemical pulp mills, where it has found a contemporary use in effluent treatment. Paper before the 1870s (and some after, of course), was cotton-based and wouldn't support this fungus.porsenahttps://www.blogger.com/profile/04362269873149438270noreply@blogger.com