• Natural products, isolation and structure determination.

•  Synthesis of heterocycles.

• Plant growth promoters.

•  Insecticidal and insect - antifeedant activity.

LIST OF PUBLICATIONS OF PROF. G.SRIMANNARAYANA,
 DEPARTMENT OF CHEMISTRY, OSMANIA UNIVERSITY ,
                           HYDERABAD –500 007.(1964-1987)

1.Chemical constitution and physiological activity of some substituted flavones – with N.V.Subba Rao, curr. Sci, 33,  47 (1964).

2. Synthesis of lanceolatin-B with N.V.Subba Rao, Curr. Sci., 34, 581 (1965).

3. Structure of  Mundulea lactone isolated from the roots of Mundulea suberosa – with V.R.Lalitha and N.V.Subba Rao, Curr. Sci., 35, 410 (1966).

4. Synthesis of  7-hydroxy-11, 12-dimethoxy coumestan – a component of Alfa-Alfa- with D.Malleswar, V.Sundara murthi and N.V.Subba Rao, Curr.Sci., 36, 346 (1967).

5. Synthesis of 3-substituted flavones as potential insecticides- with N.V.Subba Rao, Symp.Heterocyclc. Comp. Physiol.  Interest.  Held at Osmania University (1964), published in 1968 p.58.

6. Synthesis of 3-alky flavones by modidfied Baker -venkataraman transformation - with N.V.Subba Rao, Indian J.Chem, 6, 696 (1968).

7. Synthesis of 3-aryl flavones by modified Baker-Venkata Raman transformation- with N.V.Subba Rao, Indian J.Chem 7, 940 (1969).

8.Synthesis of 3-methoxy-7 amino flavones as poetential bacteriacides -with P.N.Sarma and N.V.Subba Rao Curr.Sci., 39, 133 (1970).

9. A new glucoside from Cleistanthus collinus – with T.G.Lakshmi and N.V.Subba Rao, Curr.Sci.39, 395 (1970).

10.Alpha,Alpha – Dimethyl allyl units in natural phenolic compounds - with N.V.Subba Rao, Jour, Osmania Univ. (Golden Jubilee – Vol. P.11 (1968)).

11. Chemical investigation of some plant insecticides – oxygen heterocyclics from Mundulea and Tephrosia species. – with V.R. Lalitha, V.Sundaramurthy and  N.V.Subba Rao. Symposium on Chemical Constituents of Heart woods, Andhra University, June 1966, p.37 (pub.1969).

12.Cleavage of N-O bonds in 1,2,4-oxadiazolines – with R.M.Srivastava and L.B.Clapp, Jour.Heterocyclic Chem.,7, 151 (1970).

13.Reactions of  ethylenimines  -  Ring opening of R (+) 2- ethylazirine in acidic aqueous solutions with S (-)- cysteine – with H.M.Wanghoefer, K.T.Lee, R.M.Srivastava and L.B.Clapp,Journ.Heterocyclic.Chem., 7 , 1407 (1970) .

14.Chemical components of Cassia auriculata flowers  - Isolation of   pronathocyanidin dimer, with K.R.S.Reddy and N.V.Subba Rao, Indian J.Chem 10, 956 (1972).

15. Proanthocyandins – with KR.S.Reddy, “Chemistry of Natural Products.  Three Decades in Andhra Pradesh", published by A.P. Academic of Science (1973).

16. Pongaflavone, a new chromeno chromone and an analogue of karanjin isolated from Pongamia pinnata Linn Pirce. (Syn.Pongamia Glabra) with P.Lakshmi and N.V.Subba Rao, Indian J.Chem.12,884(1974).

17. Structure of mesuanic acid – with M.Subramnyam Raju and N.V.Subba Rao Indian J.Chem.,12, 884 (1974).

18.Isolation of 3, 3’, 4-tri – O-methyl-flavellagic acid from bark of Anogeissus latifolia – with K.R.S.Reddy and N.V.Subba Rao.Curr.Sci., 43, 544 (1974).

19.Synthesis of naturally occurring partial methyl ethers of myrecetin – with P.N.Sarma and N.V.Subba Rao, Proc.Indian Acad. SCI.,80, 168 (1975).

20.New oxygen heterocyclics from Derris scandens and Mundulea suberosa – with N.V.Subba Rao, J. Indian Chem.Soc., 51, 83 (1974).

21.Synthesis of 2-4-(1,3-diphenyl)- pyrazolyl-3-methoxy chromones – with K.R.S.Reddy and N.V.Subba Rao, Proc.Indian Acad. Sci., 197, 81A (1975).

22.Synthesis of 7-hydroxy chromone-(3’,4’, : 3,2) chromone having an isorotenoid skeleton – with J.V.R. Sarma and N.V.Subba Rao, Indian J.Chem., 13, 228 (1975)

23.Photochemical studies on Karanjin – with Mrs.P.Lakshmi and N.V.Subba Rao, Indian J.Chem., 13, 1094 (1975)

24.Constitution of Villosol and villosonial, two new rotenoids from Tephrosia villosa (Linn) pods- with P.N.Sarma, N.V.Subba Rao, Indian J.Chem.,148, 152.

25.Structure of mesuaferron-B, a new biflavone from the stamens of Mesua ferrea Linn with M.Subramanyam Raju and N.V.Subba Rao, Tetrahedron letters 4509 (1976).

26.Synthesis of 3” – methyl furo (5”, 4”: 7,8) flavones- with G.L.David Krupadanam and N.V.Subba Rao, Curr.Sci,.824 (1976).

27.Photochemical studies on 2:3 – diphenyl chrmones – with K.L.Prasunamba and N.V.Subba Rao, Indian J.Chem (1977), 15B, 922.

28.Synthesis of 2” – methyl furo (5”, 4” : 7,8) flavones- with G.L.David Krupadanam and N.V.Subba Rao, Indian J.Chem (1977), 15B, 922.

29.New C6-Oxygenarated rotenoids from the pods of Tephorsia Villosa -with G.L.David Krupadanam and N.V.Subba Rao, Tetrahedron letters, 2125 (1977)

30.Synthesis of 7:8-dioxygenarated flavones -with K.L.Prasunamba and N.V.Subba Rao,Indian J.Chem. (1977) 15B, 929.

31.Reaction of some substituted 2-allylphenols with DDQ.  A new method for the synthesis of  coumarins -with K.V.Subba Raju and N.V.Subba Rao, Tetrahedron Letters, 473 (1977).

32.A new trimeric proanthocyanidin from Xylla dolabriformis -with K.Akshaya Kumar and N.V.Subba Rao,Indian J.Chem 14B,654-56 (1976).

33.Flavonoids of; the stem bark of Mundulea suberosa -with K.L.Prasunamba and N.V.Subba Rao, Curr.Sci.46, 726 (1977).

34.Photochemical studies on rotenoids isolated from Tephrosia villosa- with G.L.David.Krupadanam and N.V.Subba Rao, Indian J.Chem. 16B, 770-72 (1978).

35.Structure of Mesuaferrone-A, a new biflavone from; the flowers of  Mesua ferrea- with M.Subramanyam Raju, and N.V.Subba Rao, Indian J.Chem. 16B, 167-68 (1978).

36.Aurmillone, a new isoflavone from the seeds of Millettia auriculata -with K.V.Subba Raju, Phytochemistry, 17, 1065-66 (1978).

37.Bayer-Villeger oxidation of chromone-3-carboxaldehydes-a-facile method for the synthesis of 3-hydroxychromones- with K.Chandra Prakash Reddy and B.Veera Mallaiah, Curr.Sci.49, 18(1980).

38.Effect of some proanthocyanidines and catechins on the growth of Lemna pawcicostata Hegelm-with K.V.N.Rao, S.Seeta Rama Rao and K.Nageswara Rao, proc.Ind.Acad.Sci.(B), 89, 73 (1980).

39.Facile synthesis of 12H-Benzo (a) xanthene-12-ones by photo-oxidative cyclisation of some –2-styryl chromones - with K.Akshaya Kumar, Indian.J.Chem.19B, 615(1980).

40.Tephrosol,a new coumestone from the roots of  Tephorsia villosa- with P.Pulla Rao, Phytochemistry,19,1272(1980).

41.Effect of some proanthocyanidins and catechins on rooting of stem cuttings of  Phaselous vulgaris  L., with S.Seetha Rama Rao, K.V.N.Rao and K.Nageswara Rao, Nat.Acad.Sci.Letters,3,291(1980).
42.Claisen rearrangement of 7-(3’ –methylbut-2’-enloxyflavones and isoflavones -with K.V.Subba Raju, K.Sudha, Indian J.Chem.19B, 866(1980).
43.Synthesis of  5H-1-benzopyrano-2, 3-c quinolilne –6,12-diones by photooxidative cyclisation of some N-Phenyl-4 (H)-oxo-1-benzopyran-2-carboxamides -with K.Akshya Kumar,Indian J.chem.20B,604(1981).
44.Tephrinone –A new flavone from Tephrosia villosa -with P.Pulla Rao, Curr.sci.50, 319(1981).
45.Chemical constituents of leaves and roots  of  Gymnosporia montana-  with K.Akshya Kumar, Planta Med., 44,625(1981).
46.C13 -  NMR studies of some complex natural heterocyclic structure, millettin, a novel isoflavone isolated from Millettia auriculata -with K.V.Subba Raju, B.Ternai, R.Stanely and K.R.Markham, Tetrahedron, 37,957(1981).
47.A  Novel and convenient synthesis of 3-phenyl coumarins- with P.Pulla Rao, Synthesis,11,887(1981).
48.Facile synthesis of tinidazole and antiprotozol -with K.Chandra Prakash Reddy and Akshya Kumar, Indian J.Pharm.Sci(1981).
49.Synthesis and antiallergic activity of some benzo-di-gama-pyrones -with B.Veeramalliah, in Indian J.Chem 21B, 975(1982).
50.Synthesis of benzo-(f)-chromone by photooxidative cyclisationof 2-styryl-gamma-pyrone -with B.Veera Mallaih, Curr.Sci.(1982)51,513.
51.Dehydrogenation of chromanones and flavones by 2,3-Dichloro-5, 6-dicyano-1, 4-benzoquinone(DDQ)-A facile method for the synthesis of chromones -with Ch.Gouri Shanker,B.Veera Malliah, synthesis 4,310(1982).
52.5-Methoxyfuro (2’’, 3’’: 7,8) flavone from Ochna squarrosa- K.Chandra Prakash Reddy, K.Akshya kumar, G.Srimannarayana, Phytochemistry, 22,800,1983.
53.Synthesis and insecticidal activity of some methylenedioxy coumestanes- P.Pulla Rao and G.Srimannarayana, Indian J.Chem.22B, 945,1983.
54.Fleminone a new flavonone from Flemingia macrophylla -with K.Nageswara Rao and G.Srimannarayana, Phytochemistry, Indian J.Chem.22, 2287,1983.
55.Flemiphyllin a new isoflavone from Flemingia macrophylla -with K.Nageswara Rao and G.Srimannarayana, Phytochemistry (1984).
56.Isolation and anti-allergic activity of gamma-pyrones from Cassia spectabilis with P.N.Sarma.  B.Veera Mallaiah and K.Akshaya Kumar, Curr.Sci 53(1), 33,1984.
57.Analoues of Disodium cromoglycate as antiallergic agents part 1-synthesis of some chrome carboxylic acids: 4, 10-Dioxo-2-phenyl- (4H, 10H)-benzo/1,2-b: 3,4-b’-7 dipyran-8-carbollic acids with K.Akshaya Kumar,Indian J.Chem.1984.
58.A facile synthesis of N.benzoylbenzimidazoles by Phase-transfer catalysis -with T.J.Dennis and K.Akshaya Kumar, Organic Preparation and procedures International (OPPI) 286,16,1984.
59.Insecticidal plant chemicals as antifeedants -with D.Raghunatha Rao, Proc.Natn.Seminar Behar, Physio Appr.Magmt.Crop pests. TNAU Coimbatore, 18, 1984.
60.Di-C-glycosyl flavone from Premma tomentosa -with D.Jyostna, P.N.Sarma and A.V.Subba Rao, curr. Sci. 53,573 (1984)
61.Effect of plant derivaties on the insect vector & Rice Tugro Virus transmission -with V.Mariappan & V.Narsimhan, Proceedings of symposium on alternatives to synthetic insecticides in Integrated Pest Management System held at Madurai Kamraj University, Madurai, India (March, 1987).
62.Recent advances of insecticidial interest in Leguminous Plant products & Neem-G.Srimannarayana, Ibid. March, 1987.
63.Chemical Chloroxylon Examination & evaluation of antifeedant/insecticidal activity of Pongamia glabra & Chloroxylon swetenia -with Y.Gitanjali & D.Jyostna, Ibid, March, 1987.
64.Chemical examination & evaluation of antifeedant activity of Cleistanthus collinus -with D.Jyostna, Ibid, March, 1987.
65.Insecticidal/Antifeedant activity of natural furocoumarin-4, 5’ 8-trimethyl coumarins & related furocoumarins -with R.Jagdish Kumar & G.L.David Krupadanam, Ibid, March, 1987.
66.Laboratory evaluation of four new factories neem (Nemidin, Vemidin, Neemol and Nemicidin) against Henospilachna viginiopunctata- with S.Chitra, C.Kandaswamy, Ibid, March 1987.
67.Synthesis of 2,3-Dihydro-9H furo(3,2-b) Benzopyran –9-ones by Claisen rearrangement of 3-(3,3-methyl but-2-enyloxy) Chromones -with K.Chandra Prakash Reddy & K.V.Subba Raju , Indian J.Chem.1987.
68.Claisen rearrangement of 5-or 7-propargyloxy flavones, Formation of pyranoflavones- with Kode Nageswar Rao, Heterocycles (Japan), 26(2), 319,1987.
69.Claisen rearrangement of 3-propargyloxy flavones, Formation of linear fused furoflavones-With B.Veeramalliah,  Indian J.Chem.1987.
70.A new cyclohexidione from Mexua ferrea- with T.J.Dennis,K.Akshaya Kumar,Phytochemistry,27,2325(1988).
71.Phentherene and stilbenes from Pterolobium hexapetallum -with R.Jagadish Kumar,D.Jyotsna and G.L.David Krupadanam,Phytochemistry,1988.
72.Isoflavones form Millettia racemosa-with R.Jagadish Kumar and G.L.David Krupadanam,Phytochemistry,1988.
73.Flavonoids from the heart wood of  Hardwickia binnata-with M.Satyanarayana Reddy,G.L.David Krupadanam,Fitoterapia,58,422,1987.
74.Chemical constituents of leaves and roots of Gymnosporia montana (isolation of n.triacontanol)-K.Akshya Kumar and G.Srimannarayana,Journal of natural products,44(6),6527.
75.Chemical constituents of Flacourtia ramontochi, isolation and structure determination of new butyrolignan lactone-V.Satyanarayan,G.L.David Krupadanam and G.Srimannarayana.
76.Sunthesis insecticidal and antifeedant activities of new type of pyrethroid esters –Ch.Prasada Rao and G.Srimannarayana,Indain J.Chem,29B,1034(1990).
77.A new approach to the synthesis of 3-methyl-4H-furo(3,2-C)(1) benzopyran-4-ones and 2H,5H-pyrano(3,2-C)(1)benzopyran-5-ones-R.Jagadish Kumar,G.L.David Krupadanam and G.Srimannarayana,synthesis,635,1990.
 

PAPERS PUBLISHED BY PROF. G.SRIMANNARAYA AND CO-WORKERS DURING 1990-1999 .

1. R.Jagdish Kumar, G.L.David Krupadanam and G.Srimannarayana.
A new approvals to the synthesis of 2-methyl - 4H - furo-[3,2c][1]-benzopyran-4-ones and 5H-pyrano[3,2-c]benzopyran-5-ones
Synthesis, 6535(1990).

2. M.Satyanarayna Reddy,G.L.David Krupadanam and G.Srimannarayana
Photochemical oxidation of 7-methoxyl-3-phenyl-2-(2-furylvinyl)-chromone
Indian J.Chem 30B, 613, (1991).

3. V.Satyanarayana, Ch.Prasada Rao,G.L.David Krupadanam and G.Srimannarayana
A new and facile synthesis of chroman-3-ol
Synthetic communications, 21(4) 1455 (1991).

4. V.Satyanarayana, Ch.Prasada Rao, G.L.David Krupadanam and G.Srimananarayana
Synthesis of 9, 10-dihydro-9-hydroxy-2H,8H-benzo[1,2b :3,4b’]-dipyran-2-ones
Synthetic communications, 21(5) 661 (1991).

5. V.Satyanarayana, Ch.Prasada Rao and G.L.David Krupadanam
Clas arrangement Os 7-Propargyloxy coumanrins formation of pyrano and furanocoumerins.
Indian J. Chem., 30B 666 (1991).

6. V.Satyanarayana, G.L.David Krupadanam nd G.Srimannarayana
A butyropentone lignan disaccheride from Flacourtia ramantochi
Phytochemistry, 30(3), 1026 (1991).

7. V.Satyanarayana, G.L.David Krupadanam and G.Srimannarayana
Antibacterial activity of some natural and synthetic oxygen heterocyclic compounds
Indian J. Microbiology  31(1) 57 (1991).

8. M.Satyanarayna Reddy, G.L.David Krupadanam and G.Srimannarayana
MCPBA oxidation of 4-chromananes
Org.Prep and Procedures International (1990).

9. P.Ramachandra,Mohd.Bashher Miya, G.L.David Krupadanam and G.Srimannarayana
Cycloatanes from Wrighti tinctoria,Journal of natural products(1991)

10. K.Nagaiah, G.L.David Krupadanam and G.Srimannarayana
Coumarins from the bark of Xeromphis uliginosa
Fitotherapia LXII, 378(1992).

11. Anil Kumar, G.L.David Krupadanam and G.Srimannarayana
Photochemistry of E,C-Piperyl peperidine from Piper nigrum
Indian J. Chem, 31b 784 (1992).

12. Anil Kumar, G.L.David Krupadanam and G.Srimannarayana
Regioselective enzymotic epoxidation of E,E-Piporyl peperidine from Piper nigrum
Tet.Letters, 36B, 965(1997).

13. A Facile synthesis of 2-[4’-(2’,6’-dimethyl-3’,5’-dicarboethoxy | 4’-dihydropyridyl]

14. Chromones, S.G.Jagadeesh, G.L.David Krupadanam and G.Srimannarayana.
Indian Chem J., 36B,965(19997).

15. Tobacco Caterpillar Antifeedant fron the Gotti Stem wood trierpene betunilic Acid. S.G.Jagadeesh, G.L.David Krupadanam, G.Srimannarayana,S.Samba Murthy,Amarjit Kaur and S.S.Raja,J.Agric Food.Chem., 46(7), 1998.

16. Selective Chlorination of Chromones to 3-Cholorochromones, G.Jagadeesh, G.L.David Krupadanam
G.Srimannarayana. Synth.Commun., 28(20), 1998.
 

17. Synthesis of ethyl-4 methyl-2-dioxo-7,10-dihydro-2H[1]pyrano-2,3-1]quilnoline 9-carboxylate from 7-amino-4-methyl coumarin.K.Nagaiah,G.L.David Krupadanam, G.Srimannarayana, Indian Journal of Chemistry, 1998,

18. A Facile synthesis of 2-(2’-thienyl/2-furyl) and 2-O-toly chromones by phase transfer catalysis method.T.Udaya Kumari, G.L.David Krupadanam and G.Srimannarayana
Ind.J.Chem., 37B, 847(1998).

19. A Facile Synthesis of 3-Phenyl-4(2-thienyl/2-furyl)-and 3,4-di(2-thienyl) coumarins by phase transfer catalysis method.

 T.Udaya Kumari, G.L.David Krupadanam and G.Srimannarayana
 Ind. J.Chem 1999.
 
 

PAPERS PUBLISHED ON PLANT GROWTH PROMOTERS
 

1.  Effect of some  proanthocyanidins and catechins on the growth of Lemna Paucicostata  Hegelm.
Proc.Indian Acad. Sci., K.V.N. Rao, S.S. Rao, K.Nageswara Rao and G. Srimannarayana, 89, 73,
       1980.
2. Effect of some proanthocyanidins and catechins on the rooting of stem cuttings of Phaseolus
Vulgaris ,K.V.N. Rao, S.S. Rao, K.Nageswara Rao and G. Srimannarayana, Natl.Acad.Sci.Lett.(India),3,291,1980.

3. Chemical constituents of leaves and roots of Gymnosporia montana (isolation of n.triacontanol,
       K. Akshaya Kumar and G.Srimannarayana, Journal of Natural Products, 44, 6257, 1982).

4. Chemical Examination of the Marine Algae, Ulva fasciata, V.Santosh Reddy and G.Srimannarayana, Abst. All India Symposium on Marine Plants, Dona Paula (Held at National Institute of Oceanography), 1983, p.29.

5. Biological activity of some Marine Algal extracts, Padma Sridhar, V.V Lakshmi and H. Polasa, V.Santosh Reddy, Ch.Prasada Rao and G.Srimannarayana, Ind. Jour. Marine Sciences, 13, 90,1984.
 
 

PAPER PUBLISHED ON INSECTICIDAL ANTIFEEDANT ACTIVITY OF NEEM AND OTHER PLANTS.

1. Recent Advances of Insecticidal Interest in Leguminous plant products and Neem, G.Srimannarayana, Pub. In Proc. Symp. Alternatives to synthetic insecticides held at Madurai, 1987, pp.7.

2. Effect on plant derivatives on insect vector and rice tungro virus transmission. V.Mariappan, V.Narasimhan and G.Srimannarayana, Pub. In Proc. Symp, Alternatives to synthetic insecticides held at Madurai, 1987, pp.55

3. Laboratory evaluation of four new fractions (NEMDIN, VEMIDIN, NEMOL AND NEMICIDIN) against Henosepilachna viginitioctopunctata.

4. Evaluation of four azadirachtin rich fractions from neem (Azadirachta indica.A.Juss(Family.  Maliaceae )as mosquito larvicide. D.Raghunatha Rao, R.Roubon, Y.Geetanjali and G.Srimannarayana Journal of  Mariology (1988) 25, pp.67-72.

5. Antifeedant activity of extractives of indigenous plants against Achea janata. L.larva, Prakash Purohit, D.Jyosna and G.Srimannarayana, Pesticides, 1986, p.23

6. Insecticidal plant chemicals as antifeedants. D.Raghunatha Rao and G.Srimannarayana, Pub. In Proc. Natl. Seminar,  Physiol. Appr. Magmt. Crop. Pests, TANU, Coimbatore, 18, 1984
.
7. Effect on Neem derivaties on the survival of GLH and RTV transmission.  T.M.Gurubasa Raj, M.Mariappan, G.Srimannarayana and S.Jaya Raj. Paper presented at Final workshop of IRRI-ADB-EVC project on Botanical pest control in rice based croping systems held at International Rice Research Institute, Manila

8. Chemical examination and evaluation of antifeedant/insecticidal activity of Pongamia glabra and Chloroxylon Sweitenia.  Y.Geetanjali, D.Jyotsna and G.Srimannarayana, Pub. In Proc. Symp. Alternatives to synthetic insecticides held at Madurai, 1987, pp.27

9. Chemical examination and evaluation of antifeedant/insecticidal activity of Clestanthus collinus. D.Jyotsna, and G.Srimannarayana Pub. In Proc. Symp. Alternatives to synthetic insecticides held at Madurai, 1987, pp.21

10. Insecticidal/antifeedant activity of Natural furocoumarins –4,5’.  7 Trimethyl psoralene and related furocoumarins.  R.Jagdish Kumar, G.L.David Krupadanam and G.Srimannarayana. Pub. In Proc. Symp. Alternatives to Synthetic insecticides held at Madurai, 1987.pp.35.

11. Chemical Investigation of Indigenous insecticidal plants including neem and evaluation of insecticidal/antifeedant activity of the constitutens.  G.Srimannarayana (invited lecture), Published in the proceedings of Botanical pesticides in Integrated pest management organised by Indian society of Tobacco science, Rajahmundry, India, pp.62-73m 1993

12. Antifeedant and morphogenetic effects of azadirachtin rich fractions on Spodoptera litura  F., S.,Jayarajan, P.C.Sundara Babu, G.Srimannarayana and Y.Geetanjai,Ibid pp. 376-380 (1993).

13. Chemical Investigation of  Indigenous insecticidal plants including neem and evaluation of insecticidal/antifeedant activity of the constitutents-G.Srimannarayana, pub.In the Proceeding of the National Symposium on “Botanical Pesticides in Integrated Pest Management” held at Rahahmundry, 1993,pp.62-73.

14. Antifeedant and morphogenetic effects of azadirachtin rich fractions on Spodoptera litura, S.Jayarajan, P.C.Sundara Babu, G.Srimannarayana and Y.Geetanjali, Ibid,pp.376-380.

15. Chemical investigation and antifeedant activity of some indigenous plants including neem and custard apple seeds, G.Srimannarayana, pub. In “Biopesticides in Insect Pest Management” Eds. S.Ignacimuthu, S.J. and Alok Sen., pub.Phoenix Publishing House Pvt. Ltd., New Delhi, pp.90-93 (1999).

16. Antifeedant and insecticidal activity of some neem fractions – M.Narayana Rao, K.Nagaiah and G.Srimannarayana, “Neem and Environment, Eds.R.P.Singh, M.S.Chari, A.K.Raheja and W.Kraus, pub by Oxford & IBH Publishing Co., New Delhi, 1996, pp,237-242.

17. Antifeedant and Growth – inhibiting effects of azadirachtin rich neem fractions on Rice white-backed plant hopper Sogatella furcifera Horvath, Spodoptera litura, and Helicoverpa armigera. S.J.Nelson, P.C.Sundara babu, D.S.Rajvel, G.Srimannarayana and Y.Geetanjali, Ibid, 243-252.

18. Desalination of well waters by herbal extracts – A case study. DL.N.Simha, K.V.Sharma, P.L.K.M. Rao and G.Srimannarayana.  Ecol. Env & Cons., 1(1-4),(1995), 135-138.

19. Identification of Medicinal Plants and setting up a Biotechnology Centre, MALTA, - A report submitted to
Commonwealth Secretariat, London, C.S.Ramaiah and G.srimannarayana.(1982)

20. Progress towards neem as environmentally safe pesticide –World Neem Conference, Bangalore 1993 – Australian Conference, 1996 ,G.Srimannarayana,Neem News Letter,( pubished by IARI, New Delhi), p.14(2), &14(3), 1977, 23-52.