0 a tool for making holes in something. -- cái khoan
1 any of several insects, molluscs/mollusks etc that bores into wood, plants, stones etc. -- sâu đục thân
Clearly both insecticides are pro®table when used on maize, re-ecting the seriousness of the damage in-icted by stem borers.
They can be both primary and hyperparasitoids and were recovered from all borer species.
The lepidopteran stem borer species diversity in the wild host plants was far more diverse than previously reported.
It is this state of affairs that has produced in certain localities of the island severe outbreaks of the spotted borer.
In the case of the spotted borer the destruction of larvae in the tops to be planted is recommended.
The present study, however, revealed that recognized noctuid stem borer crop pests are not abundant on wild hosts compared to wild noctuid species.
Currently, information on diversity and abundance of stem borer natural enemies in natural habitats is minimal.
The number of surviving larvae+pupae recovered and the length of stalk bored were used as measures of borer numbers and stalk damage, respectively.
