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California Agriculture
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Effect of environment on reproduction in dusky-veined walnut aphids

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Authors

William H. Olson , Butte County

Publication Information

California Agriculture 29(5):10-11.

Published May 01, 1975

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Abstract

Abstract Not Available – First paragraph follows: The dusky-veined walnut aphid, Panaphis juglandis (Goeze), appears in three distinct forms: alate viviparous parthenogenetic females, apterous oviparous females, and alate males. Commonly, only the alate viviparous parthenogenetic female form of this aphid can be found during the spring and summer months. The apterous oviparae and males appear during the fall. This suggests that temperature, day length, or host plant (English walnut) condition influences form.

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Effect of environment on reproduction in dusky-veined walnut aphids

William H. Olson
Webmaster Email: wsuckow@ucanr.edu

Effect of environment on reproduction in dusky-veined walnut aphids

Share using any of the popular social networks Share by sending an email Print article
Share using any of the popular social networks Share by sending an email Print article

Authors

William H. Olson , Butte County

Publication Information

California Agriculture 29(5):10-11.

Published May 01, 1975

PDF  |  Citation  |  Permissions

Author Affiliations show

Abstract

Abstract Not Available – First paragraph follows: The dusky-veined walnut aphid, Panaphis juglandis (Goeze), appears in three distinct forms: alate viviparous parthenogenetic females, apterous oviparous females, and alate males. Commonly, only the alate viviparous parthenogenetic female form of this aphid can be found during the spring and summer months. The apterous oviparae and males appear during the fall. This suggests that temperature, day length, or host plant (English walnut) condition influences form.

Full text

Full text is available in PDF.

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