As lesions expand they often merge, blighting entire leaves. Cucurbit vegetables list and care backyard garden lover. Viruses of cucurbits ct integrated pest management program. Powdery mildew of cucurbits university of connecticut. Cuccap developing genomic resources for the cucurbit. Cucurbit downy mildew nc state extension publications. All four of these are grown commercially in north carolina with the largest production in cucumbers and watermelons and significant acreage in squash and melons. Compendium of cucurbit diseases and pests, second edition by. Management of gummy stem blight black rot on cucurbits. Key resource contributed use this book to identify, control, and prevent diseases and disorders of melons, watermelons, squash, cucumbers, and other cucurbits. Cucurbit beetles must be controlled when they are first noticed in the spring.
This disease is caused by the funguslike pathogen pseudoperonospora cubensis. Cucurbit virus diseases are responsible for significant yield and quality losses to cucurbit crops. Foliar diseases of cucurbits kenny seebold, extension plant pathologist figure 1. There are the cucurbits that prefer the heat, and there are the. This article is a list of diseases of cucurbits contents. The number, severity and complexity of diseases attacking these vital crops have increased in the past decade.
Although descriptions of the more common diseases have been given to assist with identification, it can be difficult to diagnose some diseases with similar symptoms. Managing multiple diseases affecting cucurbit crops. As well as immediate measures, recommendations are included to prevent recurrence. Cucurbit crops comprise almost 30% of all vegetable crop acreage in new england, and are grown on over 4,000 acres in massachusetts. Foliar diseases of cucurbits plant pathology university of kentucky. There has been a longstanding need for a comprehensive, authoritative, and uptodate account of cucurbit diseases. International projects on cucurbit diseases cucurbits are important economic crops in many parts of the world. Description of commercial cucurbit rootstocks as of february. Cucurbit downy mildew spreads rapidly and can cause extensive yield loss. Description of commercial cucurbit rootstocks as of february 5, 2015. The wilting symptoms spread up and down the runner sometimes as a recurring wilt on hot, dry days.
Wherever your cucurbits are grown, the compendium of cucurbit diseases and pests, second edition provides the latest pest management and diagnostic information to suppress diseases of all cultivated cucurbits plus. There is an article about managing multiple diseases in cucurbit crops as well as detailed articles on specific. Common tomato diseases and pests and susceptibility characteristics. Wherever your cucurbits are grown, the new compendium of cucurbit diseases and pests, second edition provides the latest pest. Compendium of cucurbit diseases and pests, second edition. Therefore, approaches to and outcomes of rating rss differ.
Cucurbits extension plant pathology nc state extension. Adults emerge in june and start laying eggs on cucurbit plants. Air pollution injury environmental stresses nutrient deficiencies pesticide injury cucurbit physiological fruit disorder poor pollination in. Cucurbit downy mildew is caused by the funguslike oomycete pathogen pseudoperonospora cubensis p. It presents the history and importance of cucurbit crop production as well as exhaustive i. Disease control in cucurbits vegetable diseases cornell. Plant pathology fact sheet ppfsvg10 foliar diseases of. Cuccap developing genomic resources for the cucurbit community. Members of the family are annual or perennial herbaceous plants. Long island horticultural research and extension center, 3059 sound avenue, riverhead, ny 11901. A colour atlas of cucurbit diseases is an important resource for practitioners, scientists and students in agriculture, agronomy, biology, horticulture, mycology and plant pathology, for crop consultants, professional growers and serious gardeners. Rating rootstock rs characteristics is complex because strains of pathogens differ and plant responses to them are rarely yes or no. Funding for this publication is from the university of kentucky pest management program.
List of plants in the family cucurbitaceae britannica. Many diseases of cucurbits can be prevented or minimized in the home vegetable garden by using the. Multiple disease resistance in cucurbits pdf melon germplasm was screened for cucumber green mottle mosaic virus cgmmv, powdery mildew. The disease is tra nsmitted th rough seed, soil, and a ir. Cucurbit downy mildew is an important foliar disease that affects all types of cucurbits. Cucurbit crops types of cucurbits and growing information. Growth, cultural practices, and physiology contains information on cultural practices, nutrition, and physiological processes of cucurbits under both normal and stressful conditions. Diagnose and treat cucurbit diseases, pest damage, and disorders. Managing diseases is a very important component of production for melons, cucumbers, squashes, pumpkins, and other cucurbit crops. M download it once and read it on your kindle device, pc, phones or tablets. Cucumber diseases and pests, description, uses, propagation. Gummy stem blight lea f blightblack rot is a major disease of cucumber, cantaloupe, pumpkin, and watermelon.
Wherever cucurbits are grown diseases can cause damage. Daily scouting is essential during the emergence and early life of the crop while the plants are. There are several viruses that affect cucumbers, melons, pumpkins, squash, and other members of the cucurbit family. Angular leaf spot is one of the most widespread diseases of cucumber.
Depending on their variety, you can sow pumpkins in pots during april or directly in the ground midmay. Published by the american phytopathological society. Introduction to cucurbit diseases and control sogpg. Signature symptoms 2000 also see the news article managing bacterial wilt affecting cucurbit crops june, 2001. Pdf important diseases of cucurbitaceous crops and their. Cucurbit genomic resources will have greater value if. Updates on powdery mildew and and its management other. Although there are 825 species of cucurbits, there are only four major crops. Cucurbit diseases and their management cu blog service.
Isolates belonging to clade 1 tend to more frequently infect watermelon, pumpkin, and squash while isolates belonging to clade 2 more. Fungicides that are protectant in nature page 1 have been assigned to group m for multisite activity or have other means of activity. They need a lot of trailing area, so when you plant leave 30 inches to a yard between plants. This disease is caused by the fungus, fusarium oxysporum forma specialis melonis. A wide range of cucurbit diseases can affect these plants at different growth stages.
The following diseases primarily affect the foliage of these crops and can result in losses in commercial fields and. All fungicides labeled for the control of cucurbit diseases are listed in table 1, and are arranged by the fungicide group numbers assigned by the fungicide resistance action committee frac. Printable pdf click on images to see larger view powdery mildew is a common and serious disease of cucurbit crops in connecticut. Statewide surveys and laboratory and greenhouse tests conducted during 20042006 showed that watermelon mosaic virus wmv was the most prevalent virus in commercial gourd, pumpkin, and squash fields in illinois. We gratefully acknowledge the cooperation of allen stevens, elizabeth bernhardt, jeff dodson, and jon watterson, seminis vegetable seeds, inc. An ipm scouting guide for common problems of cucurbit crops in kentucky this manual is the result of efforts of the university of kentucky vegetable ipm team. Here is a list of cucurbit vegetables as well as some growing help and advice. Managing multiple diseases affecting cucurbit crops margaret tuttle mcgrath plant pathology and plantmicrobe biology section, sips, cornell university long island horticultural research and extension center, 3059 sound avenue, riverhead, ny 11901. In the 20 years since aps press published the first edition of compendium of cucurbit diseases, worldwide production of watermelon, cucumber, melon, and squash has roughly doubled. Fungicide resistance is now known to exist for several. Cucurbits should be rotated with another crop every 2 years to reduce levels of inoculum.
Cucurbit diseases fact sheet list cornell university. In particular, phytophthora capsici has increased dramatically in the past five years and is causing severe crop losses and infecting more and more. The keys for the successful control of cucurbit diseases are. Proper watering and feeding programs help to keep plants healthy and diseases at bay. Other cucurbit diseases angular leaf spot on cucumber powdery mildew on acorn squash. Uk vegetable ipm team kenny seebold, extension plant pathologist. The gourd family, cucurbitaceae, consists of about 975 species across 98 genera. Diseases of cucurbits types of cucurbits those grown in il production facts etc. Phytophthora blight can affect all parts of cucurbit plants. For growers of cucurbit crops, keeping diseases such as downy mildew and phytophthora out of your fields can be particularly challenging, whether you are an organic or conventional producer. Cucurbit transplant diseases vegetable crops hotline. Diseases and insects in michigan cucurbits and their.
Fact sheets and information bulletins cucurbits cucumber, melon, pumpkin, squash, watermelon. Cucurbit vegetables come in many different shapes and sizes. This book covers the diseases and disorders of the most commonly grown cucurbits throughout the world in 2 main parts. Sustainable disease management of cucurbit crops in the. Diseases of cucurbits and their management springerlink. High level resistance to all the four diseases was not recorded in any of the collections tested. Wherever your cucurbits are grown, the compendium of cucurbit diseases and pests, second edition provides the latest pest management and diagnostic information to suppress diseases. Please help improve this article by adding citations to reliable sources. Presence of cucurbit virus diseases in the midatlantic. They are all black and orange and damage flowers and leaves. Muhammad asif pakistan slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Management of gummy stem blight black rot on cucurbits in florida 5. The compendium of cucurbit diseases and pests, second edition remains international in scope and practical in its emphasis. Diseases of cucurbit vegetables department of primary.
Dec 16, 2011 diseases of cucurbits types of cucurbits those grown in il production facts etc. A list of cucurbit pests and diseases farmers weekly. Everts, university of maryland, plant science and landscape architecture, salisbury, md 21801 karen rane, university of maryland, college park, md gerald brust, university of maryland extension, upper marlboro, md. University of californias official guidelines for pest monitoring techniques, pesticides, and nonpesticide alternatives for managing pests in agriculture, floriculture, and commercial turf. Diagnosing and managing important cucurbit diseases in the home garden. More than 320 stunning images that capture all manner of cucurbit pests in detail, allowing for more accurate diagnosis of your issues.
Sphaerotheca fuliginea, may provide entry sites for the gsb pathogen. The content of this site is published by the site owners and is not a statement of advice, opinion, or information pertaining to the ohio state university. Cucumber mosaic virus cmv, zucchini yellow mosaic virus zymv, watermelon mosaic virus wmv and. Disease control in cucurbits cornell vegetable md online.
Spores conidia released in the spring infect susceptible tissues during wet, warm. There are other less common diseases affecting cucurbits which are not covered here. An ipm scouting guide for common problems of cucurbit. Sustainable disease control in cucurbits growing produce.
Part one concerns diagnosis and includes 472 colour photographs and several line drawings grouped by plant part affected and provides straightforward definitions of symptoms. In particular, phytophthora capsici has increased dramatically in the past five years and is causing severe crop losses and infecting. Therefore, many approaches are used to rate rootstock characteristics. Description of commercial cucurbit rootstocks as of. Alternaria leaf spot, angular leaf spot or combine with maneb m3. Each section is written by experts throughout the world and edited by a team of three. Product detail compendium of cucurbit diseases and pests. You strive to be sustainable and use your resources wisely because you want to continue to farm for years to come. Erwinia tracheiphila symptoms symptoms of the disease first appear on a single leaf which suddenly wilts and becomes dull green. Second edition and millions of other books are available for amazon kindle. At least three common cucurbit leaf beetles attack pumpkins in south africa.
Common cucurbit diseases and pests and susceptibility characteristics. The already extensive list of more than 200 cucurbit diseases has expanded recently to include cucurbit yellow vine disease, acremonium collapse, rhizopycnis root rot, bacterial blight, cucumber root mat, cucurbit yellow stunting disorder virus, cucurbit. Use features like bookmarks, note taking and highlighting while reading compendium of cucurbit diseases and pests. Organic insect and disease control for cucurbit crops introduction the cucurbitaceae is a large family that includes major vegetable crops including cucumber, muskmelon, watermelon, summer squash, winter squash, pumpkin, gourd, and bitter melon.
The disease is caused by a bacterium, and the initial symptoms are small, watersoaked spots that develop on the undersides of leaves. This primefact covers common cucurbit diseases caused by fungi, bacteria and viruses. Plant pathology and plantmicrobe biology section, sips, cornell university. Part two comprises factfiles for each of the pathogens and includes details of.
If the disease is severe enough to warrant the use of fungicides, several are available for home garden use table 2. Larvae undergo four instars over two to four weeks, before mature larvae exit the plant and pupate in the soil. Presence of cucurbit virus diseases in the midatlantic kathryne l. Diagnosing and managing important cucurbit diseases in the. The already extensive list of more than 200 cucurbit diseases has expanded recently to include cucurbit yellow vine disease, acremonium collapse, rhizopycnis root rot, bacterial blight, cucumber root mat, cucurbit. The primary recommendation for managing cucurbit virus diseases has been to plant pumpkins as far as possible from other cucurbit crops to minimize the spread of infected aphids into a pumpkin planting brust and everts, 2010. Dealing with powdery mildew, fusarium wilt, aphids and other threats to your crop. This disease occurs in squashes, melons, gourds, cucumbers, and pumpkins. Harvest points on fruits can also be a point of entry for the pathogen, leading to postharvest decay. Eggs hatch in seven to 10 days and larvae tunnel into the plant stem. Fungus and bacteria can cause wilts, rots and blights. For example, strains of pathogens differ and plant responses to them are rarely yes or no. Squash vine borers overwinter as mature larvae or as pupae in the soil.
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