SCALE PESTS OF COFFEE 



life history is usually short so that there are several 

 generations during the year. With these facilities, the 

 insects multiply rapidly into many thousands. It is easy 

 to imagine therefore that the cumulative effect of such 



Text-Figure 1. — The outline of a scale insect (Coccus colemani) is given in the 

 centre, the various structures indicated being as follows: — 1. Anal plate. 2. Antenna. 

 9. Set® at entrance to stigmatic groove. 4. Leg. 5. Dermal pore. 6. Stigmatic gi-oove. 

 7. Stigma or breathirg pore. d. Mouth parts. 9. Anal setae. 10. Eye. 



1. Anal plates enlarged. 2. Antenna enlarged. 3. Portion of margin enlarged 

 showing setae. 4. Foot enlarged. 



rapidly increasing numbers on a host plant may lead to 

 its rapid weakening or death. 



There are a number of scale insects recorded attack- 

 ing coffee in South India. Mr. Fletcher lists seven in his 

 South Indian Insects. Of these, three, namely, green bug 



