Mohammad Babadoost, University of Illinois Extension specialist in fruit and vegetable pathology, said, "An outbreak of Phytophthora blight in Illinois could devastate most of the country's supply of processed pumpkins and other cucurbit crops in Illinois."
Illinois-grown processing pumpkins account for nearly 95 percent of the pumpkins grown in the United States for use in pies, breads, and other foods. Illinois has approximately 25,000 acres of processing and jack-o-lantern pumpkins with a gross value exceeding $160 million per year. Not only is it the biggest vegetable industry in the state, it's also a great source of agrotourism drawing huge crowds to choose jack-o-lantern pumpkins from fields each fall.This disease caused by Phytophthora capsici affects all cucurbits and peppers. Cucurbits include pumpkins, watermelon, honeydew, squash, zucchini, cucumbers and other vine vegetables. This disease affects both commercial and home gardeners, he said.
This disease can infect the foliage or fruit at any stage of development. In fields, infections typically appear first in low areas where the soil remains wet for longer periods of time. Fruit rot generally starts on the area of the fruit that is in contact with the soil.
Babadoost and fellow researchers have devised an integrated pest management (IPM) approach to minimizing the devastation of this disease. In fact, in the past 10 years, they've been able to reduce crop loss from an average of 30 percent loss per year to less than 10 percent loss per year.
"To prevent this disease, we recommend crop rotation of three years or longer with non-host crops, followed by seed treatment and routine scouting, especially of low areas in fields," Babadoost said. "Management of this disease requires serious, intensive work by growers, processing companies and Extension personnel. In general, no single method provides adequate control."
If Phytophthora blight is observed and localized, Babadoost recommends disking the area of infected plants to prevent the entire loss of a field. Fungicides can also be applied by commercial growers if there is no standing water in the fields. If growers choose to irrigate from a pond, it's important to make sure the pond does not contain run-off from an infested field as the pathogen may be present in the run-off for the whole season.
"This disease is greatly affected by moisture," he said. "The best way to prevent it is to keep the site as dry as possible. Home gardeners should water plants in the morning so the plants can dry throughout the day."
Pumpkins are important to Illinois, making disease prevention and monitoring crucial, Babadoost said. He remains in close contact with growers and industry representatives in order to keep diseases like this one under control.
"When the pumpkin industry experiences loss, it affects our state's economy and the people of Illinois," Babadoost said. "But more important, this is a unique crop that has value beyond dollars and cents. It's an educational and recreational crop. Any field that draws thousands of visitors every day to view it, such as popular Illinois pumpkin patches in the fall, carries significance beyond its market price."
This information on Phytophthora blight, "Fruit rots of pumpkin: A serious threat to the pumpkin industry," was published in Plant Disease. Authors included Mohammad Babadoost of the U of I and Thomas Zitter of Cornell University.
Jennifer Shike | EurekAlert!
Filling intercropping info gap
16.11.2017 | American Society of Agronomy
Climate change, population growth may lead to open ocean aquaculture
05.10.2017 | Oregon State University
The formation of stars in distant galaxies is still largely unexplored. For the first time, astron-omers at the University of Geneva have now been able to closely observe a star system six billion light-years away. In doing so, they are confirming earlier simulations made by the University of Zurich. One special effect is made possible by the multiple reflections of images that run through the cosmos like a snake.
Today, astronomers have a pretty accurate idea of how stars were formed in the recent cosmic past. But do these laws also apply to older galaxies? For around a...
Just because someone is smart and well-motivated doesn't mean he or she can learn the visual skills needed to excel at tasks like matching fingerprints, interpreting medical X-rays, keeping track of aircraft on radar displays or forensic face matching.
That is the implication of a new study which shows for the first time that there is a broad range of differences in people's visual ability and that these...
Computer Tomography (CT) is a standard procedure in hospitals, but so far, the technology has not been suitable for imaging extremely small objects. In PNAS, a team from the Technical University of Munich (TUM) describes a Nano-CT device that creates three-dimensional x-ray images at resolutions up to 100 nanometers. The first test application: Together with colleagues from the University of Kassel and Helmholtz-Zentrum Geesthacht the researchers analyzed the locomotory system of a velvet worm.
During a CT analysis, the object under investigation is x-rayed and a detector measures the respective amount of radiation absorbed from various angles....
The quantum world is fragile; error correction codes are needed to protect the information stored in a quantum object from the deteriorating effects of noise. Quantum physicists in Innsbruck have developed a protocol to pass quantum information between differently encoded building blocks of a future quantum computer, such as processors and memories. Scientists may use this protocol in the future to build a data bus for quantum computers. The researchers have published their work in the journal Nature Communications.
Future quantum computers will be able to solve problems where conventional computers fail today. We are still far away from any large-scale implementation,...
Pillared graphene would transfer heat better if the theoretical material had a few asymmetric junctions that caused wrinkles, according to Rice University...
15.11.2017 | Event News
15.11.2017 | Event News
30.10.2017 | Event News
20.11.2017 | Earth Sciences
20.11.2017 | Physics and Astronomy
17.11.2017 | Physics and Astronomy