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1. a highly flammable material, such as Greek fire, formerly used in warfare
2. lightning without audible thunder



an infectious disease of tobacco and Indian tobacco caused by the bacterium Pseudomonas tabacum. Wildfire is characterized by the appearance of numerous pale yellow chlorotic spots, reaching 2 cm in diameter, on the leaves and, sometimes, on the sepals and pods. The diseased areas desiccate in dry weather and rot in humid weather, which often leads to the perforation of the leaves. The causative agent of wildfire enters the plant through the stomata and damaged tissues. The bacterium is preserved in dust that has settled in drying sheds or clinged to seeds and to greenhouse stock; it is also preserved in the unrotted remains of a harvest. Wildfire decreases harvests by 40 to 50 percent. Prices for tobacco leaves drop by 80 percent when the leaves are diseased.

Control measures include using liquid disinfectants on seeds, disinfecting greenhouse stock, spraying seedlings with Bordeaux mixture during the phase of two true leaflets, and growing resistant varieties. The application of potash fertilizers and autumn plowing are also recommended.


Grushevoi, S. E. Bolezni tabaka i sistema meropriiatii po bor’be s nimi. Moscow, 1950.
Leonov, I. P., A. G. Petrenko, and G. M. Psarev. Posobie dlia tabakovodov. Moscow, 1968.



(plant pathology)
A bacterial disease of tobacco caused by Pseudomonas tabaci and characterized by the appearance of brown spots surrounded by yellow rings, which turn dark, rot, and fall out.
References in periodicals archive ?
Firefighters from Dexter, Lowell, south Lane County, Eugene-Springfield, McKenzie and Coburg fire districts assisted crews from the Goshen-Pleasant Hill Fire District in putting out the fire.
To protect the environment and to prevent hill fires, the spokesman encouraged members of the public to use flowers to replace incense burning to pay tribute and respect to their ancestors.
In lieu of flowers, donations may be made to the Thompson Hill Fire Department, 70 Chase Road, Thompson, CT 06277.
RED Watch at Brierley Hill Fire Station are celebrating after coming out on top in a competition in which they simulated cutting an injured person from an overturned car.
West Thompson Community volunteer Firefighter Evan Faucher, 18, said the Thompson Hill Fire Department was called to the fire just hours before a 6 p.
It will replace the current Low Hill Fire Station on West Derby Road, with money from the sale of Low Hill used to finance the Kensington facility which could be open by 2009.
Officers from Buckley Hill fire station, Netherton, were attacked while responding to an emergency call-out in Thornton on Wednesday night.
Station Officer Ian Rawlings, of Brierley Hill fire station, described it as the worst single-car accident he had seen in his career and fire crews had the grim task of cutting the bodies from the wreckage after a police doctor had certified the men dead.
Goshen and Pleasant Hill fire districts assisted at the scene.
Tenders are invited for Construction of retaining wall at gandhia mahadev mandir opp raoli hill fire brigade, sion koliwada
Watch Commander Dave Foley, of Brierley Hill Fire Station, said: "The man was shaken up but I think he was more embarrassed really.