Tenders are invited for Supplying of 79 labourer(Men only) for attending Mosquito Control, Disease Control, Removal of Pistia
plants in the canal, Storm water Drain Desilting work for a period of 40 days in Div-05 to Div-09, Unit-02, Zone-01
Herbaceous genera are characteristic of non-forested swamps; among them are Hydrocotyle (Apiaceae), Pistia
(Araceae), Eichornia (Pontederiaceae) and Azolla (Salviniaceae) (Kalliola et al, 1991; Richards, 1996).
According to a research, tannins and alkaloids in Pistia
stratiotes; tannins, alkaloids and steroid glycosides in Typha latifolia; tannins, saponins and steroid glycosides in Leucas martinicensi; alkaloids, saponins and tannins in Cynodon dactylon and saponins and tannins in Nymphaea lotus have been reported to be responsible for larval toxicity of Anopheles mosquitoes (27).
stratiotes Water lettuce Thalia geniculata Bent alligator flag Alternanthera philoxeroides Alligatorweed Pontederia cordata Pickerelweed Saururus cernuus Lizard's tail Semiaquatic or aquatic plants Colocasia esculenta Wild taro Typha sp.
Density-dependent reproductive and vegetative allocation in the aquatic plant, Pistia
American white waterlily, Nymphaea odorata; common water hyacinth, Eichhornia crassipes; water lettuce, Pistia
2007, "Macroinvertebrate fauna associated with Pistia
stratiotes and Nymphoides indica in subtropical lakes (south Brazil)," Brazilian Journal of Biology, 67, 499-507.
It is a common herbivore of Pistia
stratiodes (waterlettuce) and cultures of that species were kept nearby at the Lewisville Aquatic Ecosystem Research Facility for other research on biological controls.
Sylvatic cycles were found in swampy areas in which floating species of water lettuce, Pistia
stratiotes, provided appropriate habitat for mosquito species of the subgenus Culex (Melanoconion), the vectors of sylvatic subtypes and variants of VEE virus.
Accumulation of trace elements by Pistia
stratiotes: implications for phytoremediation.
Major weeds occurring in the lagoon yearly in December and January include the common water hyacinth Eichhornia crassipes and Cerotophyllum and Pistia
Callisneria Americana, Eichhornia crassipes, Haumaniustrum robertii, Helianthusannuus, Larrea tridentate, Lemna minor, Pistia
stratiotes and Thlaspi caerulescens.