Nov. 1906.] 



399 



Plant Sanitation. 



(2) Earias insulana. (The Egyptian Boll-Worm). Feeds on unripe bolls of a 

 late feeble crop, caused by unnatural conditions of cultivation. 



(3) Aphis sp.~ (The Cotton Blight) produces on succulent foliage a black 

 fungus known as " Ned wet-el Assal." 



(4) Opogona grossipella.— (The Small Boll- Worm) lately discovered by the 



writer. 



(5) Agrotis Ypsilon.— (The Cotton Cut Worm). 



(6) Laphygma exigua. — (The Green Cotton- Worm). 



(7) Oxycarenus halinpennis — (The Cotton Stainer.) A plant-bug which 

 sucks the sap of the cotton and lives in the unripe bolls during winter. 



(8) A Root Fungus ? — At present under observation. Appears only in July, 

 caused by overwatering. 



(9) A Species of Red Spider.— Migrates from berseem to cotton in May. 

 Sucks the chlorophyll from the leaves of the cotton plant. The late sowing of cotton 

 in the Northern portion of the Delta could be obviated and the young plants pro- 

 tected from the early cold and hot winds by the planting of suitable clumps of trees 

 to act as wind screens. This would also prove of great assistance to the bean crop 

 when in flower and prevent considerable crop loss. — The Egyptian Gazette. 



