Nematodes Sentence Examples
The parasitic and free-living Nematodes are connected by transitional forms which are free at one stage of their existence and parasitic at another; they may be divided into two classes those that are parasitic in the larval state but free when adult, and those that are free in the larval state but parasitic when adult.
Among recent advances having medical import in our knowledge of the Nematodes, the chief are those dealing with the parasites of the blood.
The so-called eelworms (Nematodes) may do immense damage on roots and in the grains of cereals, and every one knows how predatory slugs and snails are.
Nodules due to eel-worms (Nematodes) are produced on numerous classes of plants, and frequently result in great losses-e.g.
In their minute structure the muscular fibres resemble those of Nematodes.Advertisement
Wherever horticultural crops are grown intensively, root knot nematodes are a problem.
He describes how when the cow has moved on, an army of creatures including earthworms, snails, mites and nematodes take over.
Pusztai and his coworkers created GM potatoes expressing a snowdrop lectin (GNA) to increase resistance to insects and nematodes.
Reply I have always used African marigolds to reduce nematodes on my onions.
Avoid applying nematodes in bright conditions; apply in dull weather or in the evenings.Advertisement
An introduction to plant parasitic nematodes will include the students extracting cyst nematodes from infected soil.
Plant parasitic nematodes cause over $ 125 billion annual losses to world agriculture.
This information has been obtained from nearly 5,000 articles published over the past 90 years in six journals that deal mainly with plant-parasitic nematodes.
The obvious examples are genes to block the transmission of viruses and malaria parasites, as well as filarial nematodes.
At present time the fauna of the free-living nematodes in the basin of Odessa port comprises 30 species, belonging to 4 orders.Advertisement
A particular problem in east Africa are gastrointestinal nematodes.
Nematodes The effect of growing transgenic potatoes on free living nematodes The effect of growing transgenic potatoes on free living nematodes is being evaluated using samples from ongoing field trials.
Written by DM Benson, Plant Pathologist, this fact sheet provides information on the pest nematodes, which are microscopic roundworms.
The co-existence of the asexual encysted form and the sexually mature adult in the same host, exceptionally found in 011ulanus and other Nematodes, is the rule in Trichinella; many of the embryos, however, are extruded with the faeces, and complete the life cycle by reaching the alimentary canal of rats and swine which frequently devour human ordure Swine become infested with Trichinella in this way and also by eating the dead bodies of rats, and the parasite is conveyed to the body of man along with the flesh of "trichinized" swine.
Manson and Bancroft suggested that the second host of the parasite is the mosquito or gnat, and for a long time it was thought that they were conveyed to man by the mosquito dying after laying her eggs in water, the larval nematodes escaping from her body and being swallowed by man.Advertisement
Grassi and Noe think that if the cavity of the labium be full of the larval nematodes this bending will burst the tissue, and through the rent the larvae will escape and make their way into the body of the host.
If you prefer an organic, non-toxic approach, you could try using nematodes.
Nematodes are a type of worm that actually live on flea larvae, and can be purchased through some veterinarians under the brand name Interrupt.
You can also purchase parasitic nematodes to eat cutworms in the soil.
Nematodes feast upon beetle grubs, injecting a bacteria into the grub and feasting on the bacteria, which kills the larvae.Advertisement
It includes microbial flora, which enter your soil and improve it while destroying nematodes and fungus.
Scented marigolds drive off pests and kill nematodes.
While the majority of the Nematodes are parasites, there are many that are never at any period of their life parasitic. These free-living forms are found everywhere - in salt and fresh water, in damp earth and moss, and among decaying substances; they are always minute in size, and like many other lower forms of life, are capable of retaining their vitality for a long period even when dried, which accounts for their wide distribution; this faculty is also possessed by certain of the parasitic Nematodes, especially by those which lead a free existence during a part of their life-cycle.
The parasitic Nematodes include by far the greatest number of the known genera; they are found in nearly all the orders of the animal kingdom, but more especially among the Vertebrata, and of these the Mammalia are infested by a greater variety than any of the other groups.
Later observers have found similar occurrences in the cases of small nematodes, rotifers and bacteria.