infective larvae

Listing 1 - 7 from 7 for infective larvae

Horse health — practical worm control
... ? In every case, a horse becomes worm-infested by taking either worm eggs or infective larvae into its mouth. This occurs when grazing contaminated pasture, eating contaminated feed, drinking contaminated ... immature worms known as ‘infective larvae’. Often these infective larvae move away from the dung pat and wait on grass until eaten by a horse. Eggs and larvae can often survive for considerable ...
www.agric.nsw.gov.au

All About Roses
... , they move from country to country with travelers and their baggage. Being voracious feeders, the larvae (caterpillars, grubs) and the adult beetles cause heavy damage to plant parts and heavy financial ... is responsible for the killing of grubs. The bacteria reside in the intestine of the infective juvenile stage of nematodes. The nematode penetrates an insect host and moves to the haemocoel ...
www.ars.org

... ) Another condition is called Ocular Larval Migrans. The immature ascarid worms or larvae can affect the human eye. The larvae attack the retina and cause blindness. Many eyes of children have had ... by fingers or objects contaminated with cat feces. Garden produce contaminated with cat feces containing infective eggs could be a human health hazard for pregnant women. FERTILIZER VALUE What is the ...
www.extension.umn.edu

Pentalonia nigronervosa
... the virus and is only able to transmit the virus temporarily. Once all the infective charge is reduced by feeding or the passing of time, the aphid is unable ... , Hippodamia convergens, Scymnodes lividigaster, Diomus notescens (Coleoptera: Coccinelidae), and Nesomicromus navigatorum (Neuroptera: Hemerobiidae). The larvae, as well as the adults, of ladybird beetles and lacewings are very active aphid ...
www.extento.hawaii.edu

Practical Black Vine Weevil Management
... symbiotic bacteria, which quickly multiply and kill the host. Two or three generations later, the infective juvenile stage of nematodes emerges from the bacterial-soup remnants of the dead insect, ... are to be used as the principal management tool for root weevil larvae. However, if black vine weevil larvae ever develop resistance to bifenthrin, nematodes will become especially important in ...
www.rhododendron.org

Root Weevils: Troublesome Rhododendron Pests
... grown plants. Complete girdling of the stem and/or fatal root damage can occur. Larvae The larvae are C-shaped and legless as shown in Figure 2. The color is dirty white ... Steinernema and Heterorhabditis. These nematodes are multi-cellular metazoans. Nematodes are formulated and applied as infective free-swimming juveniles. This is the only free-living and environmentally tolerant stage of the ...
www.rhododendron.org More from this site

Sugar Beet Nematodes in Idaho and Eastern Oregon
... fourth-stage larvae, and the adult stage (Figure 1). Root exudates from host plants stimulate hatching of eggs. Second-stage larvae, the infective stage ... the sugar beet cyst nematode (from hatching of larvae to formation of new larvae) can be completed in four to six weeks ... stages outside the egg resemble the adult stage, except larvae are smaller. Because several generations can be produced within ...
www.uidaho.edu