Workshop Helminthosporium Diseases of Wheat: Spot Blotch and Tan Spot, CIM-MYT, El Batan, Mexico, 9-14 Feb. 1997, p. 333-338.
Pityriasis alba (PA) is a relatively widespread, non-cancerous skin condition that causes red, scaly, itchy patches. The epidemiology of yellow spot of wheat in southern Quesnland. Mexico, DF, CIMMYT.

Once they have germinated they are very successfully controlled by soil tillage. Wilson, R.E.

Spot blotch in particular is a very aggressive disease, and under a favourable environment, spraying at one- to two-week intervals for as long as necessary may be needed to maintain the disease under control. If seedling loss is patchy and large areas die then re-sowing may be required. 2005.YIELD AND YIELD COMPONENTS RESPONSE TO DEFOLIATION OF SPRING WHEAT GENOTYPES WITH DIFFERENT LEVEL OF RESISTANCE TO HELMINTHOSPORIUM LEAF BLIGHT.J. Mexico, DF, CIMMYT. Tuan H. Vu, Robert Hodyss, Paul V. Johnson, Mathieu Choukroun. The disease develops in the early spring by means of ascospores released from infected rape stubble and other susceptible brassicas. Posted by Andrew Rivkin, "Bright spotlight on Dawn mission to Ceres", "Bright Spots on Ceres Intrigue Scientists", "Bright Spots on Ceres Could Be Active Ice", "What Are Those Bright Spots on Ceres?

1993. According to research by The Ohio State University Extension, wheat yield losses from powdery mildew may be as high as 45 percent. Agric. When the crop is harvested, stagheads break releasing resting spores that contaminate harvested seed or blow out to contaminate the soil.
Annone, J. 1994. Ice would not last long in such warm conditions exposed to the vacuum of space, so that would suggest it is being brought to the surface to this day. McMullen, M.P.

In 3rd Int. Crop rotation and the control of cruciferous weeds between canola crops can reduce disease severity. Once in the plant, the fungi multiply causing decay that damages or kills the seedling.

Proc. 10-11 Jul. 1997, abstr. 44:792–796. Since rape is known to have some fungitoxic effects upon decay, its effects on HLB would need research (Dubin and Duveiller, 2000). Sow at recommended times - earlier sown crops usually have a greater incidence of viral infection. Conidial spores produced on the underside of the infected leaf are then responsible for the secondary spread of the disease. If you buy something through a link on this page, we may earn a small commission. If infected seed is sown, seedling blight may occur (refer to damping-off section). Clubroot is caused by the soil-borne fungus Plasmodiophora brassicae. Damping-off fungi will germinate with the opening rains of the season. Sharma, R.C. J. Ind. Lamari, L., Sayoud, R., Boulif, M. & Bernier, C.C. Seed treatments with phytoalexin inducer appeared to provide good protection to wheat seedlings against B. sorokiniana infection. Productions constraints due to Bipolaris sorokiniana in wheat: current situation and future prospects. Krupinsky, J.M.

In S.B. It’s a good choice to ensure grain quality and enhance yield potential, maximizing ROI. Vitiligo tends to affect large portions of the skin and causes significant skin discoloration. Effects of crop rotation and residue management practices on severity of tan spot of winter wheat. Rijksuniv.

& van Ginkel, M. 1991. There are three viruses that infect Australian canola: These viruses are widespread and surveys have found that in some situations most crops have some infected plants. These lesions produce further spores and infections can then be spread throughout the crop by either the wind or rain. Advances in tan spot research, p. 80-85. Conf., Foz do Iguazu, Brazil, 29 Jul.-3 Aug. 1990, p. 146-164. Tuori, R.P., Wolpert, T.J. & Ciuffetti, L.M. 2nd Int. 2004. Sharma, R.C. Krupinsky & M.P McMullen, eds. Di Zinno, T., Longree, H. & Maraite, H. 1998. The canola flowering period is therefore the critical time for Sclerotinia infection. & Shaheed, M.A. White spots or bumps are a common symptom of this condition.