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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 ?
The crew from Buckley Hill fire station used ladders to gain access to the internal concrete courtyard and allow paramedics to treat the boy.
Federal Judge in Columbia, SC, Issues Temporary Restraining Order Preventing Discharge of Rock Hill Fire Fighter Matt Cooper
Allison said she isn't as worried that the extra homes on her property would put much stress on the Pleasant Hill fire district because her property sits within a few miles of the Pleasant Hill fire station off Highway 58.
A spokesman for Merseyside Fire and Rescue said: "The service has been looking into the possibility of moving Low Hill Fire Station into the heart of the Kensington community as part of a multi-agency project coordinated by Kensington New Deal.
The home is owned by the parents of Pleasant Hill fire Lt.
A spokesman for Brierley Hill fire station said the sound of the impact brought neighbours dashing from their homes.
We were in a row of traffic at a red light outside Buckley Hill fire station, Netherton.
June 8 /PRNewswire/ -- Matt Cooper, an exemplary fire fighter with the Rock Hill Fire Department, will be terminated from his job following his June 18 wedding because of an "anti-family" reading of a city ordinance that makes it illegal for Cooper to marry the daughter of a department captain.
the Lane County sheriff's office and Pleasant Hill Fire Department were called to the river, just south of the Jasper Quarry on Jasper Road.
Watch Commander Russ Clarke of Brierley Hill fire station said: "The fire caused thousands of pounds worth of damage.
Low Hill fire station watch manager David Hughes said: "This was a malicious, deliberate fire which could have been more serious.
June 7 /PRNewswire/ -- Matt Cooper, an exemplary fire fighter with the Rock Hill Fire Department, will be terminated from his job following his June 18 wedding because of an "anti-family" reading of a city policy that makes it illegal for Cooper to marry a relative of another fire department employee.