The Role of Imported Parasites in the Biological Control of the Spotted Alfalfa Aphid in Southern California in 19571

1959 ◽  
Vol 52 (1) ◽  
pp. 142-154 ◽  
Author(s):  
R. VanDenBosch ◽  
E. I. Schlinger ◽  
E. J. Dietrick ◽  
I. M. Hall
Keyword(s):  
Biological Control ◽  
Southern California

Faith and Fair Housing

2013 ◽  
Vol 95 (3) ◽  
pp. 284-316
Author(s):  
Bruce G. Merritt
Keyword(s):  
Social Justice ◽  
Southern California ◽  
Property Values ◽  
Fair Housing ◽  
Ballot Initiative ◽  
White Neighborhoods ◽  
Property Owners ◽  
Fair Housing Act ◽  
Minority Families

In 1964, a California ballot initiative, Proposition 14, aiming to rescind a recent fair-housing act, proved controversial. Supporters argued that property owners had a right to sell to whomever they wished. An undercurrent addressed the supposed deleterious impact to property values if minority families could move into white neighborhoods. Racist motives were denied. This article analyzes the divisive effects of the issue on one southern California church community as it pondered the role of organized religion in matters of social justice.

scholarly journals Biological Control and Mitigation of Aflatoxin Contamination in Commodities

Toxins ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 104
Author(s):  
Ferenc Peles ◽  
Péter Sipos ◽  
Szilvia Kovács ◽  
Zoltán Győri ◽  
István Pócsi ◽  
...  
Keyword(s):  
Biological Control ◽  
Secondary Metabolites ◽  
Competitive Exclusion ◽  
Aflatoxin Contamination ◽  
Post Harvest ◽  
Physical Chemical ◽  
Synthetic Chemicals ◽  
Ruminal Degradation

Aflatoxins (AFs) are toxic secondary metabolites produced mostly by Aspergillus species. AF contamination entering the feed and food chain has been a crucial long-term issue for veterinarians, medicals, agroindustry experts, and researchers working in this field. Although different (physical, chemical, and biological) technologies have been developed, tested, and employed to mitigate the detrimental effects of mycotoxins, including AFs, universal methods are still not available to reduce AF levels in feed and food in the last decades. Possible biological control by bacteria, yeasts, and fungi, their excretes, the role of the ruminal degradation, pre-harvest biocontrol by competitive exclusion or biofungicides, and post-harvest technologies and practices based on biological agents currently used to alleviate the toxic effects of AFs are collected in this review. Pre-harvest biocontrol technologies can give us the greatest opportunity to reduce AF production on the spot. Together with post-harvest applications of bacteria or fungal cultures, these technologies can help us strictly reduce AF contamination without synthetic chemicals.

PREY PREFERENCES OF ADULT AND IMMATURE ZETZELLIA MALI EWING (ACARI: STIGMAEIDAE) AND TYPHLODROMUS CAUDIGLANS SCHUSTER (ACARI: PHYTOSEIIDAE)

1993 ◽  
Vol 125 (5) ◽  
pp. 967-969 ◽  
Author(s):  
David R. Clements ◽  
Rudolf Harmsen
Keyword(s):  
Biological Control ◽  
Potential Role ◽  
Panonychus Ulmi ◽  
Economic Damage ◽  
Apple Orchards ◽  
Effective Management ◽  
Phytoseiid Mites ◽  
Prey Preferences ◽  
Eriophyid Mites

Effective management of the interactions within the mite community is critical to biological control of economically damaging phytophagous mites such as Panonychus ulmi Koch (Tetranychidae) (Clements and Harmsen 1990). Although much is known about the potential role of phytoseiid mites in controlling P. ulmi (Dover et al. 1979), mites from at least seven other families may be present in apple orchards (Thistlewood 1991). Stigmaeid mites are predators which may play a beneficial role in biological control in conjunction with phytoseiids (Clements and Harmsen 1992). Eriophyid mites are phytophagous but seldom cause economic damage, and may compete with tetranychids and provide alternative food for predators of tetranychids (Croft and Hoying 1977).

The role of biological control in managing parasitic weeds

2007 ◽  
Vol 26 (3) ◽  
pp. 246-254 ◽  
Author(s):  
J. Sauerborn ◽  
D. Müller-Stöver ◽  
J. Hershenhorn
Keyword(s):  
Biological Control ◽  
Parasitic Weeds
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