Agronomy and phenology of “companion plants” of potential for enhancement of insect biological control
作者:
M. H. Bowie,
S. D. Wratten,
A. J. White,
期刊:
New Zealand Journal of Crop and Horticultural Science
(Taylor Available online 1995)
卷期:
Volume 23,
issue 4
页码: 423-427
ISSN:0114-0671
年代: 1995
DOI:10.1080/01140671.1995.9513919
出版商: Taylor & Francis Group
关键词: companion plants;Anethum;Coriandrum;Fagopyrum;Phacelia;benefical insects;nectar;pollen
数据来源: Taylor
摘要:
Many insects which are useful as biocontrol agents feed on pollen and nectar as adults. Nectar and pollen sources (as “companion plants") can be grown around or within crops to increase the density and diversity of predators and parasites. Plants vary in their suitability for such uses, however, and in this work, three cultivars ofCoriandrum,two ofPhacelia,and one each ofAnethumandFagopyrumwere compared with respect to their sowing‐to‐flowering times, and susceptibility to low temperatures in Canterbury, New Zealand. There were large differences between cultivars with respect to sowing‐to‐flowering times. The time to flowering was the greatest with autumn sowings andAnethumwas the most noticeably delayed.Fagopyrumfailed to flower from March to July sowings, indicating a sensitivity to low temperatures or frosts; however, it had the shortest sowing‐to‐flowering period of all plants tested. The possibility of assessing otherFagopyrumcultivars for their tolerance to low temperatures and their ability to flower in early summer is discussed.
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