@article {10843,
	title = {Effect of feeding by two Neochetina species or infestation with Tetranychus urticae Koch on histological structure of water hyacinth leaves},
	journal = {Egyptian Academic Journal of Biological Sciences A Entomology},
	volume = {2},
	number = {1},
	year = {2009},
	month = {2009},
	pages = {55-61},
	abstract = {Both weevils, Neochetina bruchi (Hustache) and Neochetina eichhorniae Warner feed on water hyacinth plants as a biocontrol agents. Tetranychus urticae Koch infested the plants grown under light and thermostatic controlled aquatic weed green house, and caused repellency of the weevils. Studying some histological structure, of water hyacinth leaves infested with mites, showed increase of the thickness of upper epidermis, number of palisade cell and thickness of leaf petiole, compared with the control and leaves infested with weevils which recorded decrease in the thickness of leaf petiole and increase in lower palisade tissue. The mites infested plants lost chlorophyll, turned brownish and lost size of vacuoles or air chambers used to store the oxygen. The volume of these vacuoles was very small in case of mite infested plants compared with leaves infested with weevils as the same as control. The weevils feeding reflected in increase in both, length and width of fed upon leaves.},
	keywords = {Neochetina bruchi, Neochetina eichhorniae},
	isbn = {1687-8809},
	author = {El-Zoghby, Amal A. A. and Ali, Fatma S. and Abo Bakr, M. H. A. and Mahgoub, M. H.}
}
@article {10625,
	title = {Population dynamics of two species of Neochetina (Coleoptera: Curculionidae) associated with Eichhornia crassipes (Pontederiaceae), in oxbow lakes of the Pantanal wetland (Mato Grosso, Brazil)},
	journal = {Acta Biologica Paranaense},
	volume = {40},
	number = {1-4},
	year = {2011},
	month = {2011},
	pages = {55-72},
	abstract = {The dynamics population of Neochetina eichhorniae Warner, 1970 and Neochetina bruchi Hustache, 1926 (Coleoptera, Curculionidae) was studied in five oxbow lakes along the Cuiaba River, Pantanal of Barao de Melgaco - MT, during one hydrological cycle, from December 2005 to November 2006. A total of 1,871 (78.45\%) adult individuals and 514 (21.55\%) immature individuals were sampled. The abundance of adults sampled for the two species, considering all sites, differs significantly in comparison with that of immatures, ranging along the hydrological cycle studied. The proportion of immatures was similar to adults only during the flooding period. The population of adults of N. eichhorniae, considering all sites, was significantly higher than that of N. bruchi, varying over time. The maximum abundance of adults occurred during the high and low water period to N. eichhorniae, and in low water and beginning of the dry period for N. bruchi. The variation in abundance, for the development phase during the year assessed can be explained according to the variation of the relative frequency of the host plant, Eichhornia crassipes (Mart.) Solms (Pontederiaceae), the most common and abundant aquatic macrophyte in oxbow lakes sampled along the hydrological cycle studied.},
	keywords = {Neochetina eichhorniae},
	isbn = {0301-2123},
	author = {de Sousa, Wesley O. and Marques, Marinez I. and Rosado-Neto, Germano H. and de Santana, Vivian T. P.}
}
@article {9451,
	title = {Effect of temperature and relative humidity on the seasonal abundance of water hyacinth weevil, Neochetina eichhorniae Warner and N. bruchi (Hustache)},
	journal = {Journal of Entomological Research (New Delhi)},
	volume = {31},
	number = {3},
	year = {2007},
	month = {September},
	pages = {233-235},
	keywords = {Neochetina bruchi, Neochetina eichhorniae},
	isbn = {0378-9519},
	author = {Borkakati, R. N. and Basit, A. and Hazarika, L. K.}
}
@article {8923,
	title = {Survival of the mirid Eccritotarsus catarinensis as influenced by Neochetina eichhorniae and Neochetina bruchi feeding scars on leaves of water hyacinth Eichhornia crassipes},
	journal = {BioControl (Dordrecht)},
	volume = {52},
	number = {2},
	year = {2007},
	month = {April},
	pages = {193-205},
	abstract = {Water hyacinth (Eichhornia crassipes (Mart.) Solms-Laub.) remains a problem waterweed worldwide, for which biological control offers a sustainable solution. Under laboratory conditions, we investigated the interaction between two established weevil species Neochetina eichhorniae (Warner), Neochetina bruchi Hustache and the mirid Eccritotarsus catarinensis (Carvalho) which have been released together in several countries. Adult and immatures of E. catarinensis had high mortality on plants with high levels of old feeding scars from adult N. eichhorniae and N. bruchi and was significantly different at p 0.05. In contrast, mirid survived well on plants with recent feeding scars from Neochetina spp. or on undamaged plants. Our results indicate that the mirid is compatible with the two weevil species for improving biological control of the weed.},
	keywords = {Neochetina bruchi, Neochetina eichhorniae},
	isbn = {1386-6141},
	author = {Ajuonu, O. and Byrne, M. and Hill, M. and Neuenschwander, P. and Korie, S.}
}
@article {8925,
	title = {The effect of two biological control agents, the weevil Neochetina eichhorniae and the mirid Eccritotarsus catarinensis on water hyacinth, Eichhornia crassipes, grown in culture with water lettuce, Pistia stratiotes},
	journal = {BioControl (Dordrecht)},
	volume = {54},
	number = {1},
	year = {2009},
	month = {February},
	pages = {155-162},
	abstract = {We assessed the effect of two biological control agents, the mirid Eccritotarsus catarinensis (Carvalho) and the weevil Neochetina eichhorniae (Warner), singly or in combination, on the competitive ability of their host plant, water hyacinth, Eichhornia crassipes (Mart.) Solms-Laub., grown in a screen house, in competition with another aquatic plant (Pistia stratiotes L.). Water hyacinth plant growth characteristics measured included fresh weight, leaf and petiole lengths, number of inflorescences produced, and new shoots. Without herbivory, water hyacinth was 18 times more competitive than water lettuce (across all experimental combinations of initial plant densities), as estimated from fresh weights. Both insect species, singly or in combination, reduced water hyacinth plant growth characteristics. E. catarinensis alone was less damaging than the weevil and under normal conditions, i.e., floating water hyacinth, is not expected to increase control of water hyacinth beyond that of the weevil. When combined with the weevil, half the inoculum of weevils and half the inoculum of mirids produced the same growth reduction as the full inoculum of the weevil. Under conditions where the weevils are not effective because water hyacinths are seasonally rooted in mud, the mirid, which lives entirely on leaves, should become a useful additional biological control agent.},
	keywords = {Neochetina eichhorniae},
	isbn = {1386-6141},
	author = {Ajuonu, O. and Byrne, M. and Hill, M. and Neuenschwander, P. and Korie, S.}
}
