witches' broom


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  • noun

Synonyms for witches' broom

an abnormal tufted growth of small branches on a tree or shrub caused by fungi or insects or other physiological disturbance

References in periodicals archive ?
5 metres (rather than 6 metres) so that they can be checked easily for signs of cocoa diseases such as witches' broom, which affects the tips of the branches.
Fungal infections - Witches' Broom Disease and Frosty Pod - have already destroyed massive cocoa plantations in South America.
Witches' broom disease and frosty pod have already destroyed massive cocoa plantations in South America.
The exotically-named Witches' Broom Disease and Frosty Pod have already devastated swathes of the South American plantations.
The winter festivals are all jumbled up in our shops with tinsel and baubles next to the witches' broom sticks, wizards' hats and fireworks.
I first encountered the witches' broom on a big farm in Bahia, Brazil's chocolate state (see map, page 10).
The astrophyllite was so characteristic in shape, so much like small twig broom heads, that I called it witches' broom astrophyllite.
Witches' broom disease, one of the most serious threats to cacao production, was first described by Went (1904), and the fungus (C.
Diseases such as witches' broom, (which leaves pods brown and dry) and black pod (a cousin of potato blight) thrive in the humid climate of the rainforest.
Fungal diseases -- black pod rot, frosty pod rot and witches' broom -- have caused severe yield losses to the cacao bean crop, which totaled almost 3 million tons in 1999.
Cocoa production has fallen across Latin America, in large part because of outbreaks of witches' broom, a fungus that destroys cocoa seeds in their pods.
com/photogallery/Oman-Lemon-research-and-production Dr Abdullah Dawood Al Zadjali, a plant pathology researcher, is a leading expert on Witches' Broom Disease of Lime (WBDL), a disease which has devastated Omani citrus trees since it first emerged in the 1970s.
In recent years, the cocoa industry has been threatened by a trio of devastating fungal diseases--frosty pod, black pod, and witches' broom.
At the Cacao Diseases: Important Threats to Chocolate Production Worldwide symposium members of the American Phytopathological Society, Canadian Phytopathological Society, and the Mycological Society of America listened to experts warn of the grave threat to cocoa plants posed by three deadly diseases: black pod, frosty pod, and witches' broom.