Summary of diseases on cucurbits (recognition signs, ways to prevent ...)
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This guide provides descriptions and pictures of the more commonly found diseases and disorders
of cucurbits worldwide. For each disease and disorder, the reader will find the common name, causal
agent, distribution, symptoms, conditions for disease development and control measures. Among the
virus disease descriptions, a vector for each disease has been identified. The photographs illustrate
characteristic symptoms of the diseases and disorders included in this guide. It is important to note,
however, that many factors can influence the appearance and severity of symptoms.
The primary audience for this guide includes cucurbit crop producers, agricultural advisors, farm
managers, agronomists, private consultants, food processors, and members from the chemical and
seed industries. This guide should be used as a reference for information about common diseases and
disorders as well as their control. However, diagnosis of these diseases and disorders using only this
guide is not recommended nor encouraged, and it is not intended to be substituted for the professional
opinion of a producer, grower, agronomist, plant pathologist or other professionals involved in the
production of cucurbit crops. Even the most experienced plant pathologist relies upon laboratory and
greenhouse techniques to confirm a plant disease and/or disease disorder diagnosis. Moreover, this
guide is by no means inclusive of every cucurbit disease. Rather, we present those diseases that are
currently most prevalent worldwide under protected culture and open field productions. With one
exception, insect pests were not included in this publication.
Always read and follow label directions for any herbicide, fungicide, insecticide or any other chemical
used for treatment or control.
A glossary of words used in the text can be found at the end of this guide, along with a list of references
for further disease information.