Insect Ecology and Integrated Pest Management Lab, University of Hawaii at Manoa

Roshan Manandhar, B.Sc. (Orissa, India), M.S. (UH at Manoa)

Current projects, Ph.D. dissertation research:
1. Using cover crops to build an ecologically based pest management program for vegetable production.
2. Ecological management of corn earworm (Helicoverpa zea) and Maize mosaic virus in sweet corn through use of cover crops.

Research interests:
My overall research interest is focused on using ecological and biological control strategies to suppress insect-pests, which are negatively impacting cropping systems in Hawaii.

Publications:
1. Manandhar, R., Hooks, C.R.R. and Wright, M.G., 2009. Influence of cover crops and intercrops systems on Bemisia argentifolli ( Hemiptera: Aleyrodidae) infestation and associated squash silverleaf disorder in zucchini. Environmental Entomology, 38: 442-449.
2. Hooks, C.R.R., Wright, M.G., Kabasawa, D.S., Manandhar, R., and Almeida, R P.P., 2008. Effect of banana bunchy top infection on morphology and growth characteristics of banana. Annals of Applied Biology, 153: 1-9.
3. Manandhar, R., Malla, S. and Sah, D. N., 2002. Population dynamics of citrus psylla (Diaphorina citri Kuwayama) in the western hills of Nepal and spread of citrus greening disease. Lumle Working Paper No. 2002/2. Kaski, Nepal: Agriculture Research Station, Lumle (Oral Presentation, 2nd SAS Convention, Khumaltar, Lalitpur).
4. Manandhar, R., Sharma, P. N. and Devkota, S. R., 2002. Monitoring field status of naturally occurring egg parasitoids of citrus green stink bug, Rhynchocoris humeralis Thunberg (Hemiptera: Heteroptera: Pentatomidae) and their identification. Lumle Working Paper No. 2002/6. Kaski, Nepal: Agriculture Research Station, Lumle (Oral Presentation, 2nd SAS Convention, Khumaltar, Lalitpur).
5. Manandhar, R., Devkota, S. R., 2000. Augmentative release of Trichogramma as a biocontrol agent against Helicoverpa armigera on tomato. Lumle Seminar Paper No. 2000/2. Kaski, Nepal: Agriculture Research Station, Lumle (Oral Presentation, 3rd National Horticulture Workshop, Khumaltar, Lalitpur).

Oral and Poster presentations:
1. Manandhar, R., Hooks, C. R. R., Wang, K-H and Wright, M. G., 2009. Population densities of mixed species of thrips on cucumber in sunn hemp and marigold living mulches agro-ecosystems. Poster Presentation, CTAHR Students Research Symposium, University of Hawaii at Manoa.
2. Manandhar, R., Hooks, C. R. R., Wang, K-H and Wright, M. G., 2009. Effect of sunn hemp and marigold living mulches on population densities of thrips and mites in a cucumber agro-ecosystem. Oral Presentation. 13th Pacific Entomology Conference, Honolulu, Hawaii.
3. Perez, E. A., Hooks, C. R. R., Wang, K-H, Wright, M. G., Almeida, R. P. P. and Manandhar, R., 2008. The virulence of banana bunchy top virus in banana plants after injection with bananacide. Poster Presentation, 39th Annual Hawaii Banana Industry Association Conference, Hilo, Hawaii.
4. Manandhar, R. and Hooks, C. R. R., 2008. Effect of barrier plants on the occurrences of aphid transmitted non-persistent viruses in zucchini. Poster Presentation, CTAHR Students Research Symposium, University of Hawaii at Manoa.
5. Wang, K-H, Hooks, C. R. R. and Manandhar, R., 2007. The effects of cover crops and intercrops on nutrient cycling arthropods, weeds, and plant parasitic nematodes. Oral Presentation, Entomology Society of America, Annual Meeting, San Diego, California.
6. Hooks, C. R. R. and Manandhar, R., 2007. Integrating mixed cropping and living mulches into vegetable production systems. Oral Presentation, Entomology Society of America, Anuual Meeting, San Diego, California.
7. Manandhar, R. and Hooks, C. R. R., 2007. Evaluation of barrier plants for protecting zucchini from non-persistently aphid transmitted virus. Student’s Competition Oral Presentation, Entomology Society of America, Annual Meeting, San Diego, California.
8. Wang, K-H., Hooks, C. R. R. and Manandhar, R., 2007. Preliminary investigation of nematodes inhabiting banana fields in Hawaii and their management options. Oral Presentation, 38th Annual Hawaii Banana Industry Association Conference, Honolulu, Hawaii.
9. Hooks, C. R. R., Fukuda, S., Perez, E. A., Kabasawa, D. S., Wright, M. G., Manandhar, R., Wang, K-H and Almeida, R. P. P., 2007. The virulence of Banana bunchy top virus in banana plants after injection with a bananacide. Oral Presentation, 38th Annual Hawaii Banana Industry Association Conference, Honolulu, Hawaii.
10. Hooks, C. R. R., Wright, M. G., Manandhar, R., Perez, E. A., Anhalt, M., Wang, K-H and Almeida, R. P. P., 2007. Comparative susceptibility of banana cultivars Dwarf Brazilian and Williams to Banana bunchy top virus. Oral Presentation, 38th Annual Hawaii Banana Industry Association Conference, Honolulu, Hawaii.
11. Manandhar, R and Hooks, C. R. R., 2007. Abundance of different stages of Bemisia argentifollii (Hemiptera: Aleyrodidae) and silverleaf severity symptoms in zucchini grown in different habitats. Oral Presentation, 12th Pacific Entomology Conference, Honolulu, Hawaii.
12. Hooks, C. R. R., Wright, M. G., Kabasawa, D. S., Manandhar, R. and Rodrigo P. P. Almeida, R. P. P., 2006. The Influence of Banana Bunchy Top Virus Infection on the Morphology and Growth of Banana. Oral Presentation, 37th Annual Hawaii Banana Industry Association Conference, Hilo, Hawaii.
13. Manandhar, R. and Hooks, C. R. R., 2005. Cultural management of insect-pests: using barrier crops to protect against non-persistently transmitted virus. Oral Presentation, CTAHR Students Research Symposium, University of Hawaii at Manoa.
14. Manandhar, R., Joshi, S. L. and Sharma, P. N., 2004. Life cycle and behavior of citrus green stink bug, Rhynchocoris humeralis Thunberg (Hemiptera: Heteroptera: Pentatomidae). Regional Agriculture Research Station, Lumle, Kaski, Nepal (Poster Presentation, 4th National Horticulture Workshop, Khumaltar, Lalitpur).
15. Manandhar, R., Sharma, P. N. and Devkota, S. R., 2004. Evaluation of trap crops for Helicoverpa armigera oviposition preferences. Regional Agriculture Research Station, Lumle, kaski, Nepal (Oral presentation, 4th National Horticulture Workshop, Khumaltar, Lalitpur).
16. Manandhar, R., Sharma, P. N. and Devkota, S. R., 2004. Loss assessment of maize grains due to storage pests under different storage conditions in different agro-ecological environments. Regional Agriculture Research Station, Lumle, Kaski, Nepal (Oral Presentation, National Summer Crop Workshop, 2004, Khumaltar, Lalitpur).

Awards:
1. 2009 Best PEPS Entomology Graduate Student Poster Presentation. CTAHR Student Research Symposium, University of Hawaii at Manoa.
2. 2008 Minoru Tamashiro Award for Entomology. University of Hawaii at Manoa.
3. 2008 Best PEPS Entomology Graduate Student Poster Presentation. CTAHR Student Research Symposium, University of Hawaii at Manoa.
4. 2003 Best Plant Protection Oral Presentation. 2nd SAS Convention, Khumaltar, Lalitpur, Nepal. 5. 1993-98 ICAR Nominee. Scholarship from Government of India for UG study.

Email: roshanm@hawaii.edu

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