@article {1682,
	title = {Depression of dispersal of the female green leafhopper (GLH) Nephotettix virescens by pipunculid parasitism and ovarian maturation},
	journal = {International Rice Research Newsletter},
	volume = {17},
	number = {6},
	year = {1992},
	note = {address of author: Raga In. Ad., Kyushu National Agricultural Experiment Station, Nishigoshi, Kumamoto 861-11, Japan.},
	pages = {29},
	abstract = {Observations in and around rice fields in Indonesia in 1986-90 indicated that pipunculid parasitism depresses even short-range dispersal of females of the cicadellid Nephotettix virescens and that females which flew long distances were mostly unparasitized and immature.},
	keywords = {agriculturalentomology, behaviour, beneficial insects, biology, cereals, fields, green leafhopper, hosts, insect pests, migration, natural enemies, Nephotettix virescens, parasitoids, pests, Pipunculidae, rice},
	author = {Suzuki, Y.}
}
@conference {1683,
	title = {Effect of major biocontrol agents on the population dynamics of the green rice leafhopper Nephotettix virescens, the most efficient vector of rice tungro disease},
	booktitle = {Biological pest control in systems of integrated pest management. Proceedings of the International Symposium on "The use of Biological Control Agents under Integrated Pest Management"},
	year = {1996},
	pages = {252-260},
	address = {Food and Fertilizer Technology Center for the Asian and Pacific Region; Taipei; Taiwan},
	abstract = {The effect of natural enemies on the population dynamics of Nephotettix virescens in asynchronous rice fields in Bali and Java was analysed as a step towards the development of integrated pest management of rice tungro virus. Egg parasitoids, lycosids and other predators attacking nymphs and adults, and pipunculids were important natural enemies of N. virescens, but none of them caused a density-dependent increase in the mortality rate of the 1st generation. Cultivation of resistant varieties was considered the most feasible and effective method for controlling the virus. The development of a forecasting technology of infective immigrant density is essential for the proper use of resistant varieties.},
	keywords = {biological control, natural enemies, Nephotettix virescens, Pipunculidae},
	author = {Suzuki, Y. and Aryawan, I. G. N. and Astika, I. N. S. and Suwela, I. N. and Widiarta, I. N. and Soeroto and Grey, G.}
}
@article {1684,
	title = {Effects of pipunculid parasitism on the population dynamics of the green rice leafhopper, Nephotettix virescens Distant},
	journal = {Proceedings of the Association for Plant Protection of Kyushu},
	volume = {38},
	year = {1992},
	pages = {73-77},
	abstract = {The effect of pipunculid parasitism on the population dynamics of the cicadellid Nephotettix virescens was studied in asynchronous rice planting areas of central Java and Bali, Indonesia. The parasitism of N. virescens adults was greater in migrant-producing, 1st and 2nd generations in paddy fields than in the other generations, which were mainly composed of immigrants from outside the area. These included populations obtained in seed beds, paddy fields 1-4 weeks after transplanting and ratoon fields 1-4 weeks after harvest. Since the parasitism occurred mainly in the nymphal stages, the above results indicated a suppression of migratory activities of parasitised N. virescens. The parasitism rate of 1st-generation adults was related positively to the adult density and negatively to the percentage of mature females among parasitoid-free females. The effects of a greater emigration rate of healthy adults on the parasitism rate of resident populations were analysed using mathematical models. The results showed that the role of pipunculid parasitism as a factor stabilising or destabilising population fluctuations of N. virescens was quite limited.},
	keywords = {agricultural entomology, beneficial insects, biology, cereals, ecology, green rice leafhopper, hosts, insect pests, models, natural enemies, Nephotettix vir, parasitoid, parasitoids, pests, Pipunculidae, population dynamics, rice fields, simulation models},
	author = {Suzuki, Y. and Raga, I. N. and Nurusanti, S. and Wadrawan, I. K. R.}
}
