1. For the grass produces a sticky substance that traps and kills stem borer larvae. 2. The larvae are probably stem borers on " Centaurea ". 3. They are susceptible to blast ( fungi ) and stem borer ( insects ). 4. The later instars are stem borers , primarily within the galls. 5. The larva then continues feeding as a stem borer . 6. The first is an insect called the stem borer . 7. They are stem borers boring the branches and trunks of coffee, teak, eucalyptus, acacia and other forest trees. 8. Khan's cheap fixes for Striga and stem borer are spreading like wildfire through the fields of east Africa. 9. The larvae are stem borers in various plants, especially grasses, but sometimes other herbaceous plants, shrubs, or trees. 10. It is used against pests such as European corn borer, rice stem borer , bollworm, tobacco budworm, and boll weevil.
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