These are called clonal lineages and designated by a number code (i.e. There are many different strains of P.These sporangia easily become air-borne, resulting in prolific spread of the pathogen. infestans can infect and produce thousands of sporangia per lesion in less than five days. Overwintering in a tomato production system is unlikely but infected tomato fruits may give rise to infected volunteer seedlings the following season. infestans can overwinter in Minnesota if protected in potato cull piles. The most common routes of introduction each season are infected potato seed tubers, infected tomato transplants shipped in from other regions, or windblown sporangia (asexual spores) from the south that then infect fields and circulate locally. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |