Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 5 of 5 for “"grass grub"”.
-
Field assessment of a sex attractant for control of grass grub, Costelytra zealandica (White)
During the 1973 flight season of the grass grub beetle, Coatelytra zealandica (White), an attempt was made to suppress populations on small scale field plots by mass trapping male beetles using simple water traps baited with the synthetic sex attractant, Durez 12687. Populations were monitored …
-
Sex pheromone studies on the grass grub (Costelytra Zealandica (White)) and the common army worm
… the identification of a sex pheromone of the grass grub beetle, Costelytra zealandica, and the attempts to use the sex pheromone directly to control grass grub infestations. The partial identification of a sex pheromone of the common armyworm moth, Pseudaletia separata, is also described. The …
-
The soil ecology of Serratia entomophila, A bacterial pathogen of the New Zealand grass grub, Costelytra zealandica (White)
… a biological control agent for the New Zealand grass grub Costelytra zealandica (White) (Coleoptera: Scarabaeidae). The bacterium causes amber disease; the larvae stop feeding and develop a characteristic amber coloration before death. Insect pest control by pathogens is often not optimized …
-
Defining genomic drivers of evolution in the entomopathogenic Serratia spp. A thesis submitted in partial fulfilment of the requirements for the Degree of Doctor of Philosophy at Lincoln University
… specific to larvae of the New Zealand endemic grass pest, Costelytra giveni (Coleoptera. Scarabaeidae). Serratia proteamaculans, another causal agent of amber disease, is as yet unutilised in commercial biocontrol but has been implicated in causing diverse disease pathotypes in grass grub …
-
A new approach for delivery of entomopathogenic fungi for plant protection against insect pests and plant diseases via maize seed : A thesis submitted in partial fulfilment of the requirements for the Degree of Doctor of Philosophy at Lincoln University
… to insect and disease damage. In presence of the grass grub Costelytra giveni (Coleoptera: Scarabaeidae) and the maize disease fungus, Fusarium graminearum (Ascomycete), some entomopathogenic fungal treatments produced improved growth performance of the maize seedlings. It was also determined the …