Herbicide applications aimed to reduce ryegrass population have been successful in reducing the risk of ARGT but have undesirable effects such as rapid reduction in pasture productivity and increase in ryegrass herbicide resistance.

A recently released biological control agent, the twist fungus, has been demonstrated to be effective in reducing the risk ARGT without the need of controlling ryegrass. The first use of the twist fungus inoculum was in 1997.

The disease is particularly prevalent in New Zealand. It may be prevented by avoiding grazing pastures containing perennial ryegrass, or seeding pastures with resistant strains of ryegrass. Horses are particularly prone to this disease because of their habit of biting close to the ground, and sparse pastures may encourage heavier grazing with greater intake of infected material. Supplementary feeding may help, but hay from infected pasture should not be used because it may contain further toxins.

Recovery usually occurs when the animal is removed from the contaminated pasture. The chief danger to stock at this stage is caused by their lack of coordination, which may result in accidental death by falling in awkward places such as ditches and ponds.

Feeding the lawn with a nitrogen based fertilizer will help the grass recover and help prevent future attacks.

Red Thread can be treated using a fungicide that contains benomyl or carbendazim. The infection will rarely kill the grass, usually only affecting the blades and not the roots, and the lawn should recover in time.

References

1) Ryzin, Benjamin Van. “Red Thread.” "Wisconsin Horticulture", 23 June 2013, hort.uwex.edu/articles/red-thread/

2) Harmon, Philip, and Richard Latin. “Red Thread.” "Purdue Extension", Dec. 2009, www.extension.purdue.edu/extmedia/bp/bp-104-w.pdf.

3) “Red Thread.” "Plant Protection", NuTurf, nuturf.com.au/wp-content/uploads/sites/2/2015/09/Red-Thread-Info.pdf.

4) “Suppression of Soil-Borne Plant Diseases with Composts: A Review.” "Taylor & Francis", www.tandfonline.com/doi/abs/10.1080/09583150400015904

5) “Red Thread — Laetisaria Fuciformis.” "Red Thread (Laetisaria Fuciformis) - MSU Turf Diseases.net - Disease Identification and Information. A Resource Guide from the Dept. of Plant Pathology at Michigan State University", www.msuturfdiseases.net/details/_/red_thread_14/.

6) “Lawn and Turf-Red Thread.” "Pacific Northwest Pest Management Handbooks", OSU Extension Service - Extension and Experiment Station Communications, 4 Apr. 2017, pnwhandbooks.org/plantdisease/host-disease/lawn-turf-red-thread.

http://www.lawnandmower.com/red-thread-disease.aspx

http://www.grassclippings.co.uk/RedThread.pdf

Thousand cankers disease can be spread by moving infected black walnut wood. Trees intended for shipment should be inspected for dieback and cankers and galleries after harvest. G. morbidia or the walnut twig beetle ("Pityophthorus juglandis") are not currently known to be moved with walnut seed . There is currently no chemical therapy or prevention available for the disease making it difficult to control the spread of the disease from the west to the eastern united states. Wood from infected trees can still be used for commercial value, but safety measures such as removing the bark, phloem, and cambium to reduce the risk of spreading the disease with shipment. Quarantines have been put in place in some states to reduce the potential movement of fungus or beetle from that region. On May 17th, 2010, the Director of the Michigan Department of Agriculture issued a quarantine from affected states to protect Michigan’s black walnut ecology and production. Contacting the appropriate entities about possible infections is important to stopping or slowing the spread of thousand cankers disease.

ARGT was first recorded in vicinity of Black Springs, South Australia, in the 1950s and then near Gnowangerup, Western Australia, in the 1960s. The disease has spread rapidly and approximately 40,000 to 60,000 square kilometres of farmland in Western Australia, and similar areas in South Australia are now infested by the ARGT-causing organisms. Most ARGT-related livestock losses occur during October to January, but losses have been recorded as late as April.

Bacterial leaf streak of wheat is not easily prevented, but can be controlled with clean seed and resistance. Some foliar products, such as pesticides and antibiotic compounds, have been tested for effectiveness, but have proven to have insignificant outcomes on the bacterial pathogen.

Using clean seed, with little infection, has yielded effective results for researchers and producers. The pathogen, being seed-borne, can be controlled with the elimination of contaminated seed, however, clean seed is not always a sure solution. Because the pathogen may still live in the soil, the use of clean seed is only effective if both the soil and seed are free of the pathogen. Currently, there are no successful seed treatments available for producers to apply to wheat seed for the pathogen.

Variety resistance is another option for control of the disease. Using cultivars such as Blade, Cromwell, Faller, Howard or Knudson, which are resistant to BLS may reduce the impact of the disease and potentially break the disease cycle. Avoiding susceptible cultivars such as Hat Trick, Kelby, and Samson may also reduce the presence of the disease and reduce the amount of bacterial residue in the soil. Using integrated pest management techniques such as tillage to turn over the soil and bury the infection as well as rotating crops may assist with disease management, but are not a definitive control methods. Depending on conditions, the bacteria may survive for up to 81 months. Because the bacteria is moisture driven, irrigation may also increase the risks of BLS infection.

Konzo can be prevented by use of the “wetting method,” which is used to remove residual cyanogens from cassava flour, as an additional processing method. Cassava flour is placed in a bowl and the level marked on the inside of the bowl. Water is added with mixing until the height of the wet flour comes up to the mark. The wet flour is placed in a thin layer on a mat for 2 hours in the sun or 5 hours in the shade to allow the escape of hydrogen cyanide produced by the breakdown of linamarin by the enzyme linamarase. The damp flour is then cooked in boiling water in the traditional way to produce a thick porridge called “fufu” or “ugali”, which is flavoured by some means such as a sauce. The wetting method is accepted by rural women because it requires little extra work or equipment and produces fufu which is not bitter, because the bitter tasting linamarin has gone.

In 2010 the wetting method was taught to the women in Kay Kalenge village, Popokabaka Health Zone, Bandundu Province, DRC, where there were 34 konzo cases. The women used the method and during the intervention there were no new konzo cases and the urinary thiocyanate content of the school children fell to safe levels. Konzo had been prevented for the first time ever in the same health zone in which it had first been discovered by Dr Trolli in 1938. Fourteen months after the intervention ceased the village was visited again. It was found that there were no new cases of konzo, the school children had low urinary thiocyanate levels, the wetting method was still being used and it had spread by word of mouth to three nearby villages. It is important to teach the women that konzo is due to a poison present in their food, to get them to regularly use the wetting method and posters are available in 13 different languages as a teaching aid as an additional method to remove residual cyanogens.

The wetting method has now been used in 13 villages in DRC with nearly 10000 people. The time of the intervention has been reduced from 18 months in the first intervention, to 12 months in the second intervention, to 9 months in the third and fourth interventions. This has reduced the cost per person of the intervention to prevent konzo by removing cyanogens from cassava flour, to $16 per person. This targeted method to reduce cyanide intake is much cheaper and more effective in preventing konzo than broad based interventions.

Although no treatment has been found it has been shown that affected individuals benefit considerably from rehabilitation and use of adequate walking aids. In the Central African Republic some children have been operated with an elongation of the Achilles tendon which improved the position of the foot but the long term consequence remains uncertain.

The genus Geosmithia (Ascomycota: Hypocreales) are generally saprophytic fungi affecting hardwoods. As of its identification in 2010, the species G. morbida is the first documented as a plant pathogen. The walnut twig beetle ("Pityophthorus juglandis") carries the mycelium and conidia of the fungus as it burrows into the tree. The beetle is currently only found in warmer climates, allowing for transmission of the fungus throughout the year. Generations of the beetle move to and from black walnut trees carrying the fungus as they create galleries, the adults typically moving horizontally, and the larvae moving vertically with the grain. As they move through the wood, the beetles deposit the fungus, which is then introduced into the phloem; cankers then develop around the galleries, quickly girdling the tree. The fungus has not been found to provide any value to the beetle. A study done by Montecchio and Faccoli in Italy in 2014 found that no fungal fruiting bodies were found around or on the cankers but in the galleries. Mycelium, and sometimes conidiophores and conidia were observed in the galleries as well. No sexual stage of the fungus has currently been found.

The disease can tolerate warm or freezing temperature, but favorable conditions for the disease include wet and humid weather. Irrigated fields provide a favorable environment for the disease. The disease has become quite prevalent in semi-tropical regions, but can found all over the world where wheat is grown. Strong winds that blow soils help contribute to the spread of disease. When the spread is initiated by wind blown soil particles, symptoms will be found most readily towards the edges of the field.

Magnesium supplements are used to prevent the disease when ruminants, for obvious economic reasons, must have access to dangerous pastures.

In Northern Europe, the disease occurs after winter housing. But in Australia and New Zealand, where the cows are not housed, the disease occurs in similar conditions, when the animal enters lush, grass-dominant pastures. In North America, grass tetany occurs most commonly when range stock are moved onto lush early pasture or when housed stock are turned out onto such pasture in the spring. A second high-risk period may occur in the fall. Although cereal grasses (e.g. winter wheat) and crested wheatgrass may be especially conducive to grass tetany, the problem can also occur with several other grass species. "Winter tetany" may occur with some silages, low-magnesium grass hays, or corn stover.

Zamia staggers is a fatal nervous disease affecting cattle where they browse on the leaves or fruit of cycads—in particular, those of the genus Zamia (thus the name). It is characterised by irreversible paralysis of the hind legs because of the degeneration of the spinal cord. It is caused by the toxins cycasin and macrozamin, β-glycosides (the sugars of which are glucose and primeverose, respectively) of methylazoxymethanol (MAM), and which are found in all cycad genera.

Following ingestion the sugar is removed by bacterial glycosidase in the gut, with the MAM being absorbed. The metabolized toxin produces tumours of the liver, kidney, intestine and brain after a latent period which may be a year or longer. The disease has been known in Australia since the 1860s and was the subject of a Queensland Government investigation during the 1890s.

The more poignant part of this disorder is the lack of desensitization for water and aqua intile injection as allergen even on repeated exposure. Avoidance of allergen as a general principle in any allergic disorder necessitates the evasion of water exposure. Topical application of antihistamines like 1% diphenhydramine before water exposure is reported to reduce the hives. Oil in water emulsion creams, petrolatum as barrier agents for water can be used prior to shower or bath with good control of symptoms. Therapeutic effectiveness of various classes of drugs differs from case to case.

There is no treatment that will rid the patient of symptoms of aquagenic urticaria. Most treatments are used to lessen the effects of the disease to promote more comfort when the body must come in contact with water.

- Oral antihistamine: Antihistamines such as hydrochloride, hydroxyzine, terfenadine and cyproheptadine have frequently been used to reverse or minimize the effects of aquagenic urticaria. The therapeutic response to these medications will vary from patient to patient and the benefits of applying a histamine antagonist to the skin has not been found to create a direct link to the minimization of water based urticaria effects.

- Topical corticosteroids: Parenteral corticosteroids have been used to help treat aquagenic uricaria in the past. The actual effect of this medication and its benefits are not clear at this time.

- Epinephrine: Patients with severe bouts of urticarial that appear to be acute will frequently use this medication to help decrease the appearance of cutaneous vasodilation. This can also help inhibit mast cell degranulation which may contribute to the presence of aquagenic urticaria.

- PUVA therapy: In one test a 21-year-old woman was given PUVA therapy four times a week in increased doses to help manage the symptoms of aquagenic urticaria. As the dosage was increased the lesions and itching caused by the disease disappeared.

- Ultraviolet radiation: Radiation is commonly used alongside antihistamines to help rid the patient of lesions and outbreaks caused by aquagenic urticaria. This therapy will cause thickening of the epidermis which can prevent water from penetrating this layer and interacting with the cells underneath. Ultraviolet therapy may also cause mast cells to limit their response to stimuli and immunosuppression which can help prevent these reactions.

- Stanazolol: Treatments for the human immunodeficiency virus or HIV have been found to help with the symptoms of aqugenic urticaria as well.

- Capsaicin: This medication is often used for producing Zostrix, a cream applied to lessen pain caused by aquagenic urticaria.

- Barrier methods: In some circumstances an oil in water solution or emulsion cream can be applied to the skin to protect it from water exposure while washing or performing aquatic activities. There does not appear to be a side effect to this method and the application is easier than many other options. Doctors will also recommend that these patients use physical barriers such as an umbrella or protective clothing to avoid contact with water to protect patients from potential outbreaks. Activities such as swimming or visiting a water park will also need to be avoided to minimize the risk of an outbreak.

Atopy is a hereditary and chronic (lifelong) allergic skin disease. Signs usually begin between 6 months and 3 years of age, with some breeds of dog, such as the Golden Retriever showing signs at an earlier age. Dogs with atopic dermatitis are itchy, especially around the eyes, muzzle, ears and feet. In severe cases the irritation is generalised. If the allergens are seasonal, the signs of irritation are similarly seasonal. Many dogs with house dust mite allergy have perennial disease. Some of the allergens associated with atopy in dogs include pollens of trees, grasses and weeds, as well as molds and House dust mite. Ear and skin infections with the bacteria "Staphylococcus pseudintermedius" and the yeast "Malassezia pachydermatis" are common secondary to atopic dermatitis.

Food allergy can be associated with identical signs and some authorities consider food allergy to be a type of atopic dermatitis.

Diagnosis of atopic dermatitis is by elimination of other causes of irritation including fleas, scabies and other parasites such as Cheyletiella and lice. Food allergy can be identified through the use of elimination diet trials in which a novel or hydrolysed protein diet is used for a minimum of 6 weeks and allergies to aeroallergens can be identified using intradermal allergy testing and/or blood testing (allergen-specific IgE ELISA).

Treatment includes avoidance of the offending allergens if possible, but for most dogs this is not practical or effective. Other treatments modulate the adverse immune response to allergens and include antihistamines, steroids, ciclosporin and immunotherapy (a process in which allergens are injected to try to induce tolerance). In many cases shampoos, medicated wipes and ear cleaners are needed to try to prevent the return of infections.

New research into T-cell receptor peptides and their effects on dogs with severe, advanced atopic dermatitis are being investigated.

Skin disease may result from deficiency or overactivity of immune responses. In cases where there is insufficient immune responses the disease is usually described by the secondary disease that results. Examples include increased susceptibility to demodectic mange and recurrent skin infections, such as Malassezia infection or bacterial infections. Increased, but harmful immune responses, can be divided into hypersensitivity disorders such as atopic dermatitis, and autoimmune disorders (autoimmunity), such as pemphigus and discoid lupus erythematosus.

An experimental treatment, enzyme potentiated desensitization (EPD), has been tried for decades but is not generally accepted as effective. EPD uses dilutions of allergen and an enzyme, beta-glucuronidase, to which T-regulatory lymphocytes are supposed to respond by favoring desensitization, or down-regulation, rather than sensitization. EPD has also been tried for the treatment of autoimmune diseases but evidence does not show effectiveness.

A review found no effectiveness of homeopathic treatments and no difference compared with placebo. The authors concluded that, based on rigorous clinical trials of all types of homeopathy for childhood and adolescence ailments, there is no convincing evidence that supports the use of homeopathic treatments.

According to the NCCIH, the evidence is relatively strong that saline nasal irrigation and butterbur are effective, when compared to other alternative medicine treatments, for which the scientific evidence is weak, negative, or nonexistent, such as honey, acupuncture, omega 3's, probiotics, astragalus, capsaicin, grape seed extract, Pycnogenol, quercetin, spirulina, stinging nettle, tinospora or guduchi.

Some foods during pregnancy has been linked to allergies in the child. Vegetable oil, nuts and fast food may increase the risk while fruits, vegetables and fish may decrease it. Another review found no effect of eating fish during pregnancy on allergy risk.

Probiotic supplements taken during pregnancy or infancy may help to prevent atopic dermatitis.

One way to prevent allergic rhinitis is to wear a respirator or mask when near potential allergens.

Growing up on a farm and having multiple brothers and or sisters decreases the risk.

Allergen immunotherapy (AIT) treatment involves administering doses of allergens to accustom the body to substances that are generally harmless (pollen, house dust mites), thereby inducing specific long-term tolerance. Allergy immunotherapy can be administered orally (as sublingual tablets or sublingual drops), or by injections under the skin (subcutaneous). Discovered by Leonard Noon and John Freeman in 1911, allergy immunotherapy represents the only causative treatment for respiratory allergies.

Experimental research has targeted adhesion molecules known as selectins on epithelial cells. These molecules initiate the early capturing and margination of leukocytes from circulation. Selectin antagonists have been examined in preclinical studies, including cutaneous inflammation, allergy and ischemia-reperfusion injury. There are four classes of selectin blocking agents: (i) carbohydrate based inhibitors targeting all P-, E-, and L-selectins, (ii) antihuman selectin antibodies, (iii) a recombinant truncated form of PSGL-1 immunoglobulin fusion protein, and (iv) small-molecule inhibitors of selectins. Most selectin blockers have failed phase II/III clinical trials, or the studies were ceased due to their unfavorable pharmacokinetics or prohibitive cost. Sphingolipids, present in yeast like "Saccharomyces cerevisiae" and plants, have also shown mitigative effects in animal models of gene knockout mice.

The goal of rhinitis treatment is to prevent or reduce the symptoms caused by the inflammation of affected tissues. Measures that are effective include avoiding the allergen. Intranasal corticosteroids are the preferred treatment if medications are required, with other options used only if these are not effective. Mite-proof covers, air filters, and withholding certain foods in childhood do not have evidence supporting their effectiveness.

Allergic conjunctivitis occurs more frequently among those with allergic conditions, with the symptoms having a seasonal correlation.

Allergic conjunctivitis is a frequent condition as it is estimated to affect 20 percent of the population on an annual basis and approximately one-half of these people have a personal or family history of atopy.

Giant papillary conjunctivitis accounts for 0.5–1.0% of eye disease in most countries.

The Allergic Alсоhоl from the original on 30 April 2012. Retrieved 2010-04-08.