@article {1393,
	title = {Natural decline of a pine needle scale population at South Lake Tahoe},
	journal = {California Agriculture},
	volume = {27},
	number = {10},
	year = {1973},
	pages = {10-Dec},
	author = {Roberts, F.C. and Luck, R.F. and Dahlsten, D.L.}
}
@article {1012,
	title = {Bionomics of the pine needle scale, Chionaspis pinifoliae and its natural enemies at South Lake Tahoe, California},
	journal = {Annals of the Entomological Society of America},
	volume = {67},
	number = {3},
	year = {1974},
	month = {15-May-74},
	pages = {309-316},
	author = {Luck, R.F. and Dahlsten, D.L.}
}
@article {744,
	title = {Effects of malathion bait spray on Aleyrodes spiraeoides (Homoptera: Aleyrodidae) and its parasitoids in northern California},
	journal = {Environmental Entomology},
	volume = {22},
	number = {1},
	year = {1993},
	month = {28-Feb-93},
	pages = {49-57},
	author = {Hoelmer, K.A. and Dahlsten, D.L.}
}
