The Hibiscus mealy bug (Phenacoccus hirsutus, Green),
Hall, Wilfrid John.
The Hibiscus mealy bug (Phenacoccus hirsutus, Green), by W.J. Hall ... - Cairo, Government Press, 1921. - 1 p. l., 28 p., 1 l. front. (fold. map) VI pl. 27 cm.
agr23000105
S341 / .A4 no. 17
The Hibiscus mealy bug (Phenacoccus hirsutus, Green), by W.J. Hall ... - Cairo, Government Press, 1921. - 1 p. l., 28 p., 1 l. front. (fold. map) VI pl. 27 cm.
agr23000105
S341 / .A4 no. 17