frass


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Related to frass: Carpenter ants

frass

A powdery residue in holes bored in wood by insects, usually by powder-post beetles.
References in periodicals archive ?
Round exit holes, about 3/8 of an inch in diameter, located on trunks and branches, egg laying sites, frass at the base of infested trees or in branch crotches and sap leaking from wounds on the tree may be the first clue to an invasion.
The role of frass and cocoon volatiles in host location by Monodontomerus aenms, a parasitoid of Megachilid solitary bees.
From fuzz to frass, there's a lot to learn about caterpillars
Keywords: Avian, foraging habitat, frass collection, prey, Setophaga cerulea, territory size
The insect, diet and frass weights were used to determine the feeding performance by calculating the efficacy of conversion of ingested food [ECI = 100 x dry weight gained by the larva/dry weight of food consumed] and the efficacy of conversion of digested food [ECD = weight gained by the larva/(food ingested - dry weight of frass)] (Hussain et al.
This would exhibit as small, pencil-sized holes that have goo or sap oozing from them, or frass (sawdust-like particles), at the base.
This behavior is troublesome not only because of the inconvenience of having to clean up bugs and remove frass stains from surfaces, but also because of the pungent cilantro-like stink BMSB produce.
Frass, Senior Instructor Designer, University of South Carolina, Center for Teaching Excellence, 1322 Greene Street, Columbia, SC 29208.
2005); fluxes of trees, insects and insect frass, flowers (Miller et al.
Additionally, presence of exuvia and frass suggest that the moths are emerging late summer or early fall.
Signs of infestation include round exit holes (3/8 to 1/2" diameter); frass (wood shavings and coarse saw dust); and pockmarks on tree minks and branches where females deposit eggs.
The base BIT and PMBs were subjected to the following conventional BIT tests according to standards: penetration test (HRN EN 1426), ring and ball technique to determine the softening point temperature (HRN EN 1427) and the Frass breaking point test (HRN EN 12593/01).