Portions of a tree that are unusable for wood products due to cubic-foot volume loss (e g , rotten/missing bole sections, dead material bole sections) or severe form-defect volume loss (e g , severe crook, sweep, forking)
To cull animals means to kill the weaker animals in a group in order to reduce their numbers. To save remaining herds and habitat, the national parks department is planning to cull 2000 elephants. Cull is also a noun. In the reserves of Zimbabwe and South Africa, annual culls are already routine. + culling cull·ing The culling of seal cubs has led to an outcry from environmental groups. the act of killing the weakest animals in a group, especially so that the size of the group does not increase too much
Any item of production picked out for rejection because it does not meet certain specifications Chip culls and utility culls are specifically defined for purposes of log grading by percentage of sound wood content
If items or ideas are culled from a particular source or number of sources, they are taken and gathered together. All this, needless to say, had been culled second-hand from radio reports Laura was passing around photographs she'd culled from the albums at home
A tree or log of merchantable size that, because of a defect, is useless for its intended purpose A B C D E F G H I L M O P R S T U V W -D- DBH -- See diameter breast height
A tree of such poor quality that it has no merchantable value in terms of the product being cut However, a timber cull tree may have value for wildlife or aesthetics