Influences of Irrigation Practices on Spider Mite
1
Densities on Field Corn
2

Chandler, L. D.; Archer, T. L.; Ward, Charles; Lyle, W. M.

doi:10.1093/ee/8.2.196

Cited by 45 publications

(27 citation statements)

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“…Fig. 4 (Kennedy et al, 1958;Wearing, 1967;Wearing & van Emden, 1967;Sidhu & Kaur, 1976;Scriber, 1977Scriber, , 1979Could, 1978;Chandler et al, 1979;Arora & Sidhu, 1982;Brodbeck, 1982;Chadda & Arora, 1982;Lewis, 1982Lewis, , 1984Miles et at., 1982a, b;Service & Lenski, 1982;Cates et al, 1983;Mellors & Propts, 1983;Cockfield & Potter, 1986;Price & Clancy, 1986;Watt, 1986;Connor, 1988;McQuate & Connor, 1990), our results suggest that White's hypothesis is untenable as a general explanation for insect outbreaks. The experiments we performed in a controlled environment chamber with rehydrated previously water-deficient foliage were contrived to be a strong test of the hypothesized nutritional effects of water deficits on herbivorous insects.…”

Section: White's Hypothesismentioning

confidence: 99%

Insect responses to plant water deficits. II. Effect of water deficits in soybean plants on the growth and survival of Mexican bean beetle larvae

McQuate

Connor

1990

Ecological Entomology

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1. We examined the effect of water deficits in soybean, Glycine mux [L.] Merr., on the growth and survival of Mexican bean beetle larvae, Epiluchnu vurivestis Mulsant (Coleoptera: Coccinellidae).2. Larvae were reared under growth chamber, glasshouse, and field conditions on foliage from plants that were either well-watered or subjected to water deficits.3. Larval survival, growth rate and pupal weight were reduced, and development time was increased when larvae were reared on foliage from plants subjected to water deficits. These results are contrary to White's (1974) hypothesis that water deficits in plants cause increased growth and survival of herbivorous insects.4. Changes in foliage chemistry caused by water deficits, possibly in the concentration of free amino acids, are the most likely causes of the observed effects on growth rate and development time. However, under glasshouse and field conditions, physical changes in foliage and/ or the foliage's environment that accompany water deficits are also important.

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Section: White's Hypothesismentioning

confidence: 99%

Insect responses to plant water deficits. II. Effect of water deficits in soybean plants on the growth and survival of Mexican bean beetle larvae

McQuate

Connor

1990

Ecological Entomology

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“…Weather conditions may affect the biological control of spider mites in corn so there may be situations where spider mites become an important pest. However, these con- (Ehler 1974, Chandler et al 1979. Hailstones remove many of the lower leaves on the plant on which spider mites develop early in the season.…”

Section: Resultsmentioning

confidence: 99%

Winter Annual Cover Crop Has Only Minor Effects on Major Corn Arthropod Pests

Davis¹,

Currie²,

Klocke³

et al. 2010

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We studied the effects of downy brome, Bromus tectorum L., winter cover crop on several corn, Zea mays L., pests in the summer crop after the cover crop. An experiment was conducted that consisted of two trials with two levels of irrigation, two levels of weed control, and two levels of downy brome. Corn was grown three consecutive years after the downy brome grown during the winter. Banks grass mites, Oligonychus pratensis (Banks), twospotted spider mites, Tetranychus urticae Koch, and predatory mites from the genus Neoseiulus were present in downy brome at the beginning of the growing season. They moved into corn, but their numbers did not differ significantly across the treatments. Larval western corn rootworm, Diabrotica virgifera virgifera LeConte, feeding on corn roots was evaluated the second and third years of corn, production. Irrigation and herbicide treatments had no significant effects on rootworm injury levels. In one trial, rootworm injury ratings were significantly greater in treatments with a history of high versus low brome, but this effect was not significant in the other trial. Rootworm injury seemed to be similar across plots with different surface soil moistures. This suggests that the use of a winter cover crop such as downy brome will not have a major negative impact the arthropods studied.

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“…lady beetle adults and larvae, lacewing larvae, syrphid fly larvae, and spiders). Damage by mites was rated weekly using a 1-10 scale described by Chandler et al (1979) where 1 = 1-10% of total leaf area per plot with mite damage, 2 = >10-20% damage, to 10 = 91-100% (dead).…”

Section: Methodsmentioning

confidence: 99%