Príklady borer

• garden pests such as gypsy moths, Japanese beetles, sawflies, and peach twig borers

• pests such as caterpillars, tomato hornworms, aphids, bean beetles, and various borers

• The crop is showing damage from the European corn borer.

• a pile of tools including a rusty hole borer

• The results showed that the remaining lepidopteran stem borer families and subfamilies have restricted host plant ranges.

• For these pest groups, climatic conditions and geographical distribution of pests (downy mildews, corn borers, etc.) restrict the importance to some hot spots.

• To enable measuring the effect of reduced borer densities on maize yield, the maize monocrop and all intercrops were grown with and without insecticide treatment.

• Top borers attack the youngest part of the plant top, and usually destroy the growing point.

• Similar results have been obtained by several authors who have studied the effect of nutrient factors in diapause induction in stem borers.

• Some planters do not realise the disastrous effects which follow when cane-tops infested with borers are planted.

• It should be an invaluable addition to the library shelf for all those with a professional interest in stem borer pest management.

• The number of surviving larvae+pupae recovered and the length of stalk bored were used as measures of borer numbers and stalk damage, respectively.

• Currently, information on diversity and abundance of stem borer natural enemies in natural habitats is minimal.

• The present study, however, revealed that recognized noctuid stem borer crop pests are not abundant on wild hosts compared to wild noctuid species.

• In the case of the spotted borer the destruction of larvae in the tops to be planted is recommended.

• It is this state of affairs that has produced in certain localities of the island severe outbreaks of the spotted borer.

• The lepidopteran stem borer species diversity in the wild host plants was far more diverse than previously reported.

• They can be both primary and hyperparasitoids and were recovered from all borer species.

• Clearly both insecticides are pro®table when used on maize, re-ecting the seriousness of the damage in-icted by stem borers.