MF,AT,Y BUf!f='. 



24-5 



experiments show 1hat spraying' with vopin Avasli cliocks tho iiipocl: and 



is profitable. 



The Green Bu^- is less widely scattered but appears to be spreading- 



from the Pulny Hills into the Nilg'iris and will probaldy reach other 



districts. Both of these insects infest ilie twigs, sucking out the juice 



and gradually or quickly killing tlie plant. The Coffee Mealy Bug 



in Coorg infests tlie roots, specially of young plants. J'^xperimeuts show 



that treatment with lime and sulphur, aided by an occasional applica- 

 tion of insecticide, 



keeps this pest in 



cheek. Elsewhere it 



attacks a variety of 



plants, mostly garden 



plants. 



The shade trees of 



coffee in Mysore are 



infested by the Green 



Mealy Scale,i which 



attacks certain trees 



and destroys the 



foliage. The black 



blight produced by 



this and allied spe- 

 cies on coffee shade 



trees injures the 



coffee and is one of 



the worst features of 

 this pest. 



Another destructive species is the Red Spotted Scale,^ a dark- 

 coloured scale with a reddish centre ; this attacks palms and is injurious 

 to the betel palm. Sugarcane is attacked by three species,^ the mealy 

 bug of cane alone being widespread. It is most easily checked by care 

 in the selection of only clean setts for planting. 



Cotton is attacked by a mealy bug which lives in the top 

 leaves of each shoot and causes the shoot to twist and form a gall ; 

 it attacks only certain indigenous varieties and is known only in Behar. 

 Plucking the affected shoots is the simple and radical treatment for 

 this pest. 



^ Pvlrinaria jjsiijii. Maslc. | "^ Aspi(^iotii<i fcn/s. Asliin. 



•^ T)actylo'pkui sncehari. Civil. (Cano Mpaly Bngr.) 

 Rtpersia sacchari. Gr. 

 ^clpffJa Japo)ilc(T. Maskj 



Fig. 295. 

 The Tea Meali/ Bit a. 



