Temperature Relationships of the Development of Northern Corn Rootworm Eggs1
- 1 October 1968
- journal article
- Published by Oxford University Press (OUP) in Journal of Economic Entomology
- Vol. 61 (5) , 1406-1410
- https://doi.org/10.1093/jee/61.5.1406
Abstract
The threshold temperature for hatching of eggs of Diabrotica longicornis (Say) was determined as 52°F. The thermal constant for tile first hatching was about 400 degree-days above 52°F. First hatching in the field can be expected when the average soil temperature condition at the 5—10-cm level reaches 368–396 cumulated degree-days. First hatching also coincided with the air temperature cumulation of about 500 degree-days. This index must be scaled up or down depending on the condition of the ground cover.Keywords
This publication has 0 references indexed in Scilit: