Hostname: page-component-cd9895bd7-gvvz8 Total loading time: 0 Render date: 2024-12-28T00:19:13.876Z Has data issue: false hasContentIssue false

Weed Control in Immature Pecan (Carya illinoensis) and Peach (Prunus persica) Plantings

Published online by Cambridge University Press:  12 June 2017

C. E. Arnold
Affiliation:
Agric. Res. Center, Monticello, FL 32344
J. H. Aldrich
Affiliation:
Agric. Res. Center, Monticello, FL 32344

Abstract

Field experiments were conducted in 1974 and 1975 to evaluate the effect of seven herbicides applied preemergence and two herbicides applied postemergence on weed growth around 7-yr-old pecan [Carya illinoensis (Wang.) K. Koch ‘Elliott’ and ‘Desirable’] and 3-yr-old peach [Prunus persica (L.) Batsch ‘June Gold’] and to observe herbicidal tolerance as noted from visually expressed phytotoxicity. After 12 weeks, the best control of bermudagrass [Cynodon dactylon (L.) Pers.], purple nutsedge (Cyperus rotundus L.), and wild blackberry (Rubus cuneifolius Pursh) was obtained with glyphosate [N-(phosphonomethyl)glycine], napropamide [2-(α-naphthoxy)-N,N-diethylpropionamide] + glyphosate, and napropamide + terbacil (3-tert-butyl-5-chloro-6-methyluracil) + paraquat (1,1′dimethyl-4,4′-bipyridinium ion). The most effective overall control of yellow nutsedge (Cyperus esculentus L.), camphorweed [Heterotheca subaxillaris (Lam.) Britt. & Rusby], dogfennel [Eupatorium capillifolium (Lam.) Small], large crabgrass [Digitaria sanguinalis (L.) Scop.], and Florida pusley (Richardia scabra L.) resulted from napropamide + terbacil + paraquat. Herbicides used caused no visible toxicity to the immature pecan or peach trees.

Type
Research Article
Copyright
Copyright © 1979 by the Weed Science Society of America 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Literature Cited

1. Aitken, J. B. 1974. Influence of glyphosate on grasses in peaches and pecans. Proc. South. Weed Sci. Soc. 27:170175.Google Scholar
2. Aitken, J. B. 1976. Evaluation of napropamide and methazole performance in pecans. Proc. South. Weed Sci. Soc. 29:173180.Google Scholar
3. Aitken, J. B. 1976. Promising new herbicides for young pecans. Proc. South. Weed Sci. Soc. 29:181189.Google Scholar
4. Aitken, J. B. 1977. Evaluation of oryzalin in young nonbearing pecan trees. Proc. South. Weed Sci. Soc. 30:185189.Google Scholar
5. Daniell, J. W. 1976. Weed control in pecan row-middles with glyphosate. Proc. South. Weed Sci. Soc. 29:172 (Abstr.).Google Scholar
6. Edmondson, J. B., Addison, D. A., Hicks, R. D., Humphreys, W. H., Keaton, J. A., and McNeil, K. E. 1976. Oryzalin: A new herbicide for weed control in fruit and nut crops. Proc. South. Weed Sci. Soc. 29:191193.Google Scholar
7. Gambrell, C. E. Jr. 1976. Four years results using napropamide and methazole as herbicides in peach orchards. Proc. South. Weed Sci. Soc. 29:171 (Abstr.).Google Scholar
8. Gambrell, C. E. Jr. 1976. Oryzalin: A promising new herbicide for bearing and non-bearing peach orchards. Proc. South. Weed Sci. Soc. 29:194 (Abstr.).Google Scholar
9. Marriage, P. B. and Khan, S. U. 1978. Differential varietal tolerance of peach (Prunus persica) seedlings to glyphosate. Weed Sci. 26:374378.Google Scholar
10. Putnam, A. R. 1976. Fate of glyphosate in deciduous fruit trees. Weed Sci. 24:425430.Google Scholar