The leaf blister mite of pear and apple /
Quaintance, A. L
The leaf blister mite of pear and apple / by A. L. Quaintance - Washington : Department of Agriculture - 6 p. - EUA. Dept. of Agriculture Farmers'bull.; 722 .
203574
Eriophyes pyri Pera -- Plagas Manzana -- Plagas
The leaf blister mite of pear and apple / by A. L. Quaintance - Washington : Department of Agriculture - 6 p. - EUA. Dept. of Agriculture Farmers'bull.; 722 .
203574
Eriophyes pyri Pera -- Plagas Manzana -- Plagas