| Issue Date | Title | Author(s) |
| 1980 | Leaf blight of Dioscorea Esculenta (Lourd.) Berk. | Chandrasekharan Nair, M; Karunakaran, P; Gokulapalan, C |
| 1980 | Leaf spot disease of Dioscorea alata Linn. | Abraham, M; Karunakaran, P; James Mathew |
| 1980 | Little leaf disease of clove in Kerala | Karunakaran, P; Chandrasekharan Nair, M |
| 1972 | Mode of entry of Cercospora personata (Berk. And Curt.) Ell- & Ev. In the leaf of groundnut plant (Arachis Hypogaea L.) | Karunakaran, P; Sam raj, J |
| 1980 | Role of ascorbic acid on 'tikka' disease of groundnut | Karunakaran, P; Sam Raj, J |
| 1982 | Severe leaf blight of palmyra palm (Borassus Flabelliformis) caused by Pestalotiopsis palmarum in Kerala | Balakrishnan, B; Karunakaran, P; Chandrasekharan Nair, M |
| 1996 | Strain variation in colletotrichum Gloeosporioides (Penz.) Penz & Sacc. | Karunakaran, P; Alice, K J |
| 1989 | Studies on the leaf spot diseases of oil palm (Elaeis guineensis jacq.) in Kerala | Karunakaran, P; Thomas John |
| 1973 | Survival of Cercospora personata (berk, and curt.) Ell. & ev., Cercospora hibisci tracy and earle., and Cercospora henningsii allesch in the soil | Karunakaran, P; Sam Raj, J |
| 1980 | Twig blight and flower shedding disease of clove trees | Karunakaran, P; Chandrasekharan Nair, M |
