Topics discussed included:
1) Nut (acorn) weevil larvae: Two weeks ago we sliced open the weevil egg-infected acorns we had collected from the Yoshida Jinja hiilside in August and found that healthy-looking nut weevil larvae had grown to fill much of the space inside the shells and had eaten all the acorn contents, leaving needle-like feces. One person in our group found a wonderful video link
http://www2.nhk.or.jp/school/movie/clipbox.cgi?das_id=D0005401434_00000&keepThis=true&TB_iframe=true&width=920&height=480
showing how the adult weevils lay eggs inside holes they have drilled in the acorns while they are still on the twigs of the trees and then crawl back along the twig and spend hours sawing away at it until they cut through it and it falls to the ground, carrying the egg-infected acorns with it. We wonder: Why do the weevils go to all the trouble to cut the twig off like that?
1) Nut (acorn) weevil larvae: Two weeks ago we sliced open the weevil egg-infected acorns we had collected from the Yoshida Jinja hiilside in August and found that healthy-looking nut weevil larvae had grown to fill much of the space inside the shells and had eaten all the acorn contents, leaving needle-like feces. One person in our group found a wonderful video link
http://www2.nhk.or.jp/school/movie/clipbox.cgi?das_id=D0005401434_00000&keepThis=true&TB_iframe=true&width=920&height=480
showing how the adult weevils lay eggs inside holes they have drilled in the acorns while they are still on the twigs of the trees and then crawl back along the twig and spend hours sawing away at it until they cut through it and it falls to the ground, carrying the egg-infected acorns with it. We wonder: Why do the weevils go to all the trouble to cut the twig off like that?
