摘要:

The interrelationship between 4 species of ants and the sugarcane borer,Diatrea saccharalisF., was studied over a 6-month period in Florida. Ants were collected monthly from May to October, and numbers were compared with those of sugarcane borers collected bi-weekly during the same period. The data showed a slight increase in sugarcane borer damage in the fields treated with mirex (dodecaclorooctahydro-1,3,4-metheno-1H-cyclobuta[cd]pentalene) to reduce populations of the red imported fire ant,Solenopsis invictaBuren. Pearson's correlation cofficients were positive between the sugarcane borer and the red imported fire ant but negative between the sugarcane borer andPheidole dentataMayr andP. floridanaEmery. These data suggest that the reduction of all ant species with mirex bait resulted in increased damage from the sugarcane borer and that a multiple predator ant complex is more effective than one dominated byS. invicta.

ISSN:1754-5692    

DOI:10.1093/ee/10.3.415

出版商:Oxford University Press    

年代:1981

数据来源: OUP

摘要:

During the period 1955–1973, winter survival of the boll weevil,Anthonoumus grandisBoheman in Mississippi, as determined by examination of surface woods trash samples in the fall and sprrig, ranged from 0.2 to 51.6% for a state avg. The numbers of weevils entering hibernation in the fall ranged from 0 to 72,149/ha. In most years percentage survival was greater at the southern end of the study than at the northern end. Several climatic factors (minimum temperature, number of days during which the minimum temperature was O°C or below, number of days during which the maximum temperature was O°C or below) were correlated with survival percentage.

ISSN:1754-5692    

DOI:10.1093/ee/10.3.419

出版商:Oxford University Press    

年代:1981

数据来源: OUP