THE ROLE OF REFUGE AREAS IN THE PHENOLOGY OF RHOPALOSIPHUM-PADI IN LOW RAINFALL CROPPING AREAS OF SOUTH-AUSTRALIA

被引：10

作者：

DEBARRO, PJ

MAELZER, DA

WALLWORK, H

机构：

[1] UNIV ADELAIDE,WAITE AGR RES INST,DEPT CROP PROTECT,GLEN OSMOND,SA 5064,AUSTRALIA

[2] UNIV ADELAIDE,WAITE AGR RES INST,S AUSTRALIAN DEPT AGR,GLEN OSMOND,SA 5064,AUSTRALIA

来源：

ANNALS OF APPLIED BIOLOGY | 1992年 / 121卷 / 03期

关键词：

RHOPALOSIPHUM-PADI; ALATE PRODUCTION; PASTURES; REFUGE AREAS; SOUTH-AUSTRALIA;

D O I：

10.1111/j.1744-7348.1992.tb03462.x

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

Extensive surveys of possible aphid habitats in South Australia indicated that irrigated perennial grass pastures in the Mount Lofty Ranges and Lower Murray Valley were summer refuges for Rhopalosiphum padi (L.) (Hemiptera: Aphididae). Large numbers of aphids build up in these pastures each year during autumn (April and May) with numbers peaking in May. The size of the May peak was related to the number of aphids surviving the summer. The proportions of alates were highest in May and August/September. Both peaks coincided with a photoperiod of between 11.2 and 11.5 h, and partial correlations suggested that aphid density, photoperiod and temperature were all significant determinants of alate production.

引用

页码：521 / 535

页数：15

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