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Effects of Temperature on Damage to Velvetleaf (Abutilon theophrasti) by the Scentless Plant Bug Niesthrea louisianica

Published online by Cambridge University Press:  12 June 2017

David T. Patterson ,
Robert D. Coffin  and
Neal R. Spencer
David T. Patterson
Affiliation:
Dep. Agric., Duke Univ., Durham, NC 27706
Robert D. Coffin
Affiliation:
Dep. Agric., Duke Univ., Durham, NC 27706
Neal R. Spencer
Affiliation:
Res. Entomol., U.S. Dep. Agric., Stoneville, MS 38776
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Abstract

In controlled-environment chambers, the scentless plant bug Niesthrea louisianica Sailer damaged reproductive structures of velvetleaf (Abutilon theophrasti Medik. # ABUTH) and reduced viable seed production by 98 to 99%, in comparison with insect-free control plants. The insect completed its life cycle on velvetleaf in two temperature regimes simulating warm growing-season conditions in Mississippi (29/23 C day/night) and Minnesota (24/18 C). Feeding by N. louisianica delayed flowering, capsule development, and capsule and seed maturation in biotypes of velvetleaf from Mississippi and Minnesota, in both temperature regimes. Numbers and weights of capsules and seed were lower in the infested plants. Augmentation of natural populations of N. louisianica to increase population density early in the growing season might be effective in reducing velvetleaf seed production.

Keywords

Biological controlseedgerminationABUTH
Type
Weed Biology and Ecology
Information
Weed Science , Volume 35 , Issue 3 , May 1987 , pp. 324 - 327
Copyright
Copyright © 1987 by the Weed Science Society of America 

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References

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