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MARIN COUNTY, Calif. - The rainy season brings life-giving water to California but often enacts a penalty in the form of floods, mudslides and falling trees. Now, a new danger has come to light ...
The resulting larvae feed on the kernel and when fully developed, tunnel out of the nut, fall to the ground and dig themselves a small chamber. They may wait one or two years before pupating . [ 4 ] Garry oak acorns were collected in 1996, 1997 (low crop years) and in 1998 (high crop year) to examine infestation damage.
The pests can infest and consume more than 95% of an oak's acorns. [citation needed] Fires also released the nutrients bound in dead leaves and other plant debris into the soil, thus fertilizing oak trees while clearing the ground to make acorn collection easier.
This study had begun in October 1960 with Ohio acorns, and unfolded two years later in 1962 to include more oak trees in the U.S. [3] When looking particularly at the life history of C. posticatus, it was revealed that the larvae of the C. posticatus species had gone through 5 instars, where they emerged in 14 days from bur oak acorns and 30 ...
Deer begin laying down their travel routes to and from the apple and oak trees, long before the fruit and nuts even ripen. On these good years, some trees produce heavy, branch-bending loads ...
It is in the white oak section, Quercus sect. Quercus, and is also called mossycup oak, mossycup white oak, blue oak, or scrub oak. The acorns are the largest of any North American oak (thus the species name macrocarpa, from Ancient Greek μακρός makrós "large" and καρπός karpós "fruit"), and are important food for wildlife.
California physician and botanist (and one of the founding fathers of the California Academy of Sciences) Albert Kellogg described an oak in an 1855 publication as Quercus arcoglandis (spur acorn oak), [10] apparently the same species as Q. wislizeni. This clearly predates French-Swiss botanist de Candolle's 1864 name, and if confirmed to be ...
Acorns are such an important resource to the California populations that acorn woodpeckers may nest in the fall to take advantage of the fall acorn crop, a rare behavior in birds. [19] Acorns are stored in small holes drilled especially for this purpose in "granaries" or "storage trees"—usually snags, dead branches, utility poles, or wooden ...