This is a preview. Log in through your library . Abstract Bacterial leaf spot (BLS) caused by Xanthomonas spp. is a serious and a major constraint to tomato production worldwide. The seed-borne nature ...

Q: This happened to my Mexican plum last summer. What caused it, and what can I do to prevent it this year? A: At first glance I thought this had been caused by caterpillars, but then I decided to ...

Are you dealing with Septoria brown spot in your soybean fields? You already know this and other common foliar fungal diseases wreak havoc on soybean crops, but you might not know how to start ...

Bacterial leaf streak, a foliar disease in corn, has only been in the United States for a handful of years, but researchers say it's a major problem in the Western US Corn Belt. Bacterial leaf streak, ...

DEAR NEIL: I have a handsome oak growing in my yard. Every year about this time, its leaves develop tiny holes. Many of the leaves start to fall, although new leaves are also being produced.My tree is ...

Your photo and description indicate Septoria leaf spot, which is very common on Rudbeckia and is prevalent in Illinois. The disease begins on lower leaves and progresses up the plant but does not ...