Philip M Wargo

Philip M. Wargo · U.S. Dept. of Agriculture, Forest Service

Sayfa sayısı yok · 1978

Leaves

Philip M. Wargo · U.S. Dept. of Agriculture, Forest Service

Sayfa sayısı yok · 1983

Diseases and pests / Oak / Oak dieback

Philip M Wargo · Dept. of Agriculture : for sale by the Supt. of Docs., U.S. Govt. Print. Off.

15 sayfa · 1978

Gypsy moth / Hardwoods

Philip M. Wargo · Forest Service, U.S. Dept. of Agriculture, Northeastern Forest Experiment Station

Sayfa sayısı yok · 1975

Roots / Starch / Trees

Philip M. Wargo · Northeastern Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture

Sayfa sayısı yok · 1971

Carbohydrates / Sugar maple

Philip M. Wargo · Ecomed

134 sayfa · 1993

Red spruce decline / Red spruce / Roots

Philip M. Wargo · Birkhauser Verlag AG

150 sayfa · 1992

Kategori yok

Philip M Wargo · Dept. of Agriculture : for sale by the Supt. of Docs., U.S. Govt. Print. Off.

15 sayfa · 1978

Gypsy moth / Defoliation