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- W816784990 abstract "Five insecticides were evaluated for Apache cicada control in asparagus. Best control was achieved by two unregistered pyrethroid insecticides. The currently registered pyrethroid insecticide in this study (Pounce) was not as effective as Capture or Baythroid. Methomyl Pinnate) applied after the experiment was also very effective in controlling adult Apache cicadas. DiSyston provided very little control. Introduction Asparagus, Aspargus officinalis L., is attacked by only a few insect pests in the desert southwest which are of economic importance. These pests are the asparagus aphid, Brachycorynella asparagi (Mordvilko), and several species of thrips and grasshoppers which are pests during spring production and several species of armyworms which feed on foliage in the summer and the fall. The asparagus miner, Ophiomyia simplex (Loew), is a pest in Imperial County, CA and has been reported severely damaging asparagus in Iowa, New York and Massachusetts (Ferro and Gilbertson 1982 and references therein). The fungal pathogens Fusarium moniliforme and F. oxysporum are major pests of asparagus causing asparagus decline, although they do not cause damage until aspargus is stressed. Plants then exhibit wilt symptoms, resulting in a melting out effect over extended areas of the field and when severe can cause the field to be uneconomical and abandoned (Nigh 1989). Mining by the aspargus miner has been shown to increase disease incidence by the two Fusarium diseases (Ferro and Gilbertson 1982). In the desert southwest high populations of and feeding by the Apache cicada, Diceroprocta apache Davis, has been implicated as one of the principal sources of stress to asparagus, resulting in fusarium decline (Nigh 1989). Little data exist for insecticidal control of apache cicadas on aspargus. This experiment was initiated to obtain further information about some current and potential insecticides for control of this insect. Effective long term controls are needed for adult cicada control as oviposition generally begins about July 1st and continues during the entire month. Adult cicadas also continue to emerge during this period. Methods and Materials Five insecticide treatments were applied the evening of July 3rd, 1992 to a 5 yr old field of UC 157 F2 asparagus with 4 -5 ft of fern located east of San Luis, AZ, farmed by Signal Farming. Applications were made with a CO2 powered backpack sprayer calibrated to deliver 10.4 gal /acre with 4 T -Jet 8001 nozzles. Plots were 50 ft long x 2 rows (10 ft) wide and treatments were replicated 4 times in a randomized complete block design. Four rows of asparagus separated each treatment block. Plants were heavily infested with cicadas (5 + per foot of rwo) which had initiated seasonal oviposition 5 days prior to treatment." @default.
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- W816784990 date "1992-12-01" @default.
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- W816784990 title "Evaluation of Insecticides for Control of the Apache Cicada on Asparagus" @default.
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