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!
New data unearths pesticide peril in beehives
21.04.2017 | Cornell University
New rice fights off drought
04.04.2017 | RIKEN
More and more automobile companies are focusing on body parts made of carbon fiber reinforced plastics (CFRP). However, manufacturing and repair costs must be further reduced in order to make CFRP more economical in use. Together with the Volkswagen AG and five other partners in the project HolQueSt 3D, the Laser Zentrum Hannover e.V. (LZH) has developed laser processes for the automatic trimming, drilling and repair of three-dimensional components.
Automated manufacturing processes are the basis for ultimately establishing the series production of CFRP components. In the project HolQueSt 3D, the LZH has...
Reflecting the structure of composites found in nature and the ancient world, researchers at the University of Illinois at Urbana-Champaign have synthesized thin carbon nanotube (CNT) textiles that exhibit both high electrical conductivity and a level of toughness that is about fifty times higher than copper films, currently used in electronics.
"The structural robustness of thin metal films has significant importance for the reliable operation of smart skin and flexible electronics including...
The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.
Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...
The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...
Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.
Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...
20.04.2017 | Event News
18.04.2017 | Event News
03.04.2017 | Event News
25.04.2017 | Physics and Astronomy
25.04.2017 | Materials Sciences
25.04.2017 | Life Sciences