Pests

Please visit the UC Statewide Integrated Pest Management Program (UC IPM) website for an extensive list of pest management and identification sites.

INSECTS

• Acidification of tank mix to enhance the efficacy of organically registered pesticides for control of spotted wing drosophilia, Drosophilia suzukii :: Crop Notes newsletter (Jan.-Feb. 2010)
• Bagrada bug, a new pest of cole crops in California's southern deserts :: Kern Vegetable Crops newsletter (Winter 2010)
• Black bean aphis in sugarbeets :: Pest-O-Gram (Jan. 2013)
• Bulb mites :: Kern Vegetable Crops newsletter (Winter 2010)
• Codling moth control options near waterways :: Field Notes newsletter (May 2009)
• Diversity of Arbuscular Mycorrhizal Fungi (AMF) in Kern county and dependency of carrots for optimal growth :: Kern County news release (June 2007)
• Efficacy of novel insecticides on lepidopterous pest management in lettuce :: Crop Notes newsletter (Mar.-Apr. 2010)
• Evaluation of insecticides for whitefly and CYSDV management on melons :: Ag Briefs newsletter (Feb. 2010)
• Flea beetle and whitefly insecticide efficacy in lettuce, 2009 :: Ag Briefs newsletter (Sept. 2010)
• (An) injected insecticide versus foliar insecticides for lettuce worm control in 2010 :: Ag Briefs newsletter (Sept. 2011)
• Insecticide efficacy against broccoli insects, 2011 :: Ag Briefs newsletter (Sept. 2012)
• Insecticide efficacy against lettuce insects, 2011 :: Ag Briefs newsletter (Sept. 2012)
• Insecticide efficacy against whitefly in broccoli, 2010 :: Ag Briefs newsletter (Sept. 2011)
• Insecticide efficacy against broccoli insects, 2011 :: Ag Briefs newsletter (Sept. 2012)
• Low hybrid onion seed yields relate to honey bee visits and insecticide use :: California Agriculture (July-Sept. 2011)
• Organic control of sweet corn earworms :: Central Coast Family Farm Report (Aug. 1989)
• Spring sweet corn insecticide efficacy trial, 2010 :: Ag Briefs newsletter ( March 2011)
• Sweet corn insecticide efficacy trial 2012 :: Ag Briefs newsletter (March 2013)
• Thrips control in iceberg lettuce 2012 :: Ag Briefs newsletter (Jan. 2013)
• Thrips control on onions :: Ag Briefs newsletter (Nov. 2011)
• Use of plastic and spray on mulches to repel aphids and thrips and their effect on plant growth :: Kern Vegetable Crops (Winter 2011)

PLANT PATHOLOGY (diseases, nematodes)

• Alfalfa mosaic virus :: Kern County news release (July 2008)
• Anthracnose :: UC IPM website
• Bacterial diseases of onions :: Kern Vegetable Crops newsletter (Winter 2010)
• Bacterial diseases of tomato :: Kern County news release (March 2011)
• Bacterial leaf spot of parsley: characterization of a new disease :: Crop Notes newsletter (Mar.-Apr. 2011)
• Blackmold of tomatoes :: Kern County news release (July 2007)
• Botrytis gray mold problems on lettuce :: Crop Notes newsletter (May-June 2009)
• Charcoal rot of potatoes (and other crops) :: Kern Vegetable Crops newsletter (July 2014)
• Complex tomato diseases photos :: CTRI (1998)
• Crop rotations as a method of disease control :: Kern Vegetable Crops newsletter (Dec. 2010)
• Crop rotations as a method of disease control :: Kern Vegetable Crops newsletter (July 2014)
• Curly top disease occurring on coastal tomato and pepper :: UC Salinas Valley Agriculture (Sept. 2010)
• Curly top disease of vegetable crops :: Crop Notes newsletter (Sept.-Oct. 2010)
• Development of disease suppressive soils in the San Joaquin Valley :: Kern Vegetable Crops newsletter (Winter 2010)
• Downy mildew fungicides: effective products protect lettuce :: Crop Notes newsletter (July-Aug. 2010)
• Downy mildew of lettuce :: Ag Briefs newsletter (Nov. 2009)
• Early Tospovirus outbreaks confirmed on Salinas Valley leafy greens :: UC Salinas Valley Agriculture (Apr. 2015)
• Effects of weather on vegetable disease development :: Kern County news release (Oct. 2009)
• Evaluation of insect repellents and barriers as method to control cucumber mosaic virus on bell peppers :: Kern Vegetable Crops newsletter (Aug. 2008)
• Evaluation of insecticides for whitefly and CYSDV management on melons :: Ag Briefs newsletter (Feb. 2010)
• Foliar disease and relative humidity :: Ag Briefs newsletter (Feb. 2010)
• Foliar diseases of carrots :: Kern Vegetable Crops newsletter (Dec. 2010)
• Foliar diseases of carrots :: Kern Vegetable Crops newsletter (July 2014)
• Fungicide efficacy of novel fungicides against Podosphaera xanthii, the powdery mildew pathogen on melons in 2009 :: Ag Briefs newsletter (Mar. 2010)
• Fungicide efficacy trial for control of certain soil diseases in direct-seeded melons :: Ag Briefs newsletter (Mar. 2010)
• Fusarium wilt of cilantro :: Crop Notes newsletter (Nov.-Dec. 2008)
• Iris yellow spot virus: a continuing threat to onion crops :: Ag Briefs newsletter (Apr. 2009)
• Iris yellow spot virus in onions :: Ag Briefs newsletter (March 2011)
• Iris yellow spot virus: new concern for onion on central coast :: Crop Notes newsletter (Jan.-Feb. 2014)
• Late blight may be an issue this year :: Kern Vegetable Crops newsletter (Winter 2010)
• Leaf diseases of carrot :: Crop Notes newsletter (May-June 2011)
• Losses due to lenticel rot are an increasing concern for Kern County potato growers :: Kern Vegetable Crops newsletter (Summer 2009)
• Naming a new race (Race PFS 12) of the spinach downy mildew pathogen :: Crop Notes newsletter (Jan.-Feb. 2011)
• Needle nematode: an important plant parasitic nematode of the Imperial Valley :: Ag Briefs newsletter (Oct. 2009)
• Nematodes :: Pest Notes 7489 (2010)
• New method to control soil borne pathogens: biological soil disinfestation :: Kern County news release (Feb. 2009)
• Occurence of bacterial leaf spot of parsley in 2009 :: Crop Notes newsletter (Mar.-Apr. 2009)
• Phytophthora capsici, cause of root and crown rot of tomatoes, peppers and squash :: Kern Vegetable Crops newsletter (Aug. 2008)
• Potato scab of potatoes :: Kern County news release (Nov. 2008)
• Powdery mildew of pepper: biology and management :: Crop Notes newsletter (Jan.-Feb. 2014)
• Powdery mildew of spring crops :: Ag Briefs newsletter (April 2011)
• Powdery mildew on melons :: Ag Briefs newsletter (July 2009)
• Powdery mildew on vegetables :: UC IPM
• Preparing for harvest–late-season onion bulb diseases :: Ag Briefs newsletter (May 2009)
• Production of 80-inch beds impacts lettuce drop disease :: Crop Notes newsletter (Mar.-Apr. 2011)
• Pythium root rot of lettuce :: Crop Notes newsletter (Jul-Aug 2012)
• Race PFS: 14—another new race of the spinach downy mildew pathogen :: Crop Notes newsletter (Jul-Aug 2012)
• Recent progress on white rot control of garlic and onions :: Kern Vegetable Crops newsletter (Aug. 2008)
• Root-knot nematodes in tomatoes and “resistance-breaking” strains :: Field Notes newsletter (May 2009)
• Scab diseases of potato :: Kern County news release (Dec. 2008)
• Sclerotinia diseases :: UC ANR Publication 8042 (2001)
• Seedling diseases of vegetables :: Kern Vegetable Crops newsletter (July 2014)
• Southern blight :: Kern County news release (July 2010)
• Southern blight :: Kern Vegetable Crops newsletter (Dec. 2010)
• Spinach as a host of impatiens necrotic spot virus :: Crop Notes newsletter (May-June 2009)
• Spinach downy mildew: new race found in 2008 :: Crop Notes newsletter (Nov.-Dec. 2008)
• Spinach downy mildew: preparing for another season :: Crop Notes newsletter (Jan.-Feb. 2012)
• Stemphylium leaf spot: new disease on parsley :: Crop Notes newsletter (Jul-Aug 2012)
• Systemic downy mildew of lettuce and crucifier :: Crop Notes newsletter (Mar.-Apr. 2009)
• Tomato spotted wilt virus hitting lettuce crops:: UC Salinas Valley Agriculture blog (Oct. 2010)
• Tomato spotted wilt virus--update :: Field Notes newsletter (May 2011)
• Tobacco rattle virus: new virus found in spinach :: Crop Notes newsletter (Sept.-Oct. 2009)
• Using mode of action classifications in an integrated resistance management program–fungicide resistance :: Ag Briefs newsletter (Sept. 2009)
• Update of research on tomato powdery mildew control programs :: Field Notes newsletter (Feb. 2010)
• Vectors of viruses: a review :: Crop Notes newsletter (Nov.-Dec. 2010)
• Vegetable diseases: a colorful handbook :: FOR PURCHASE :: Academic Press publication (2006)
• Viruses of garlic :: Kern Vegetable Crops newsletter (Aug. 2008)
• Uncommon virus disease outbreaks seen on Coastal spinach in 2015 :: UC Salinas Valley Agriculture blog (Apr. 2015)
• Winter and spring rains enhance diseases :: Crop Notes newsletter (Mar.-Apr. 2010)

WEEDS

• Automated thinner/weeders for lettuce production :: Crop Notes newsletter (Jan.-Feb. 2014)
• Mechanical weed control tools for vegetables :: Crop Notes newsletter (Jan./Feb. 2012)
• Spinach weed control: where we have neen and where we are now :: Crop Notes newsletter (Mar.-Apr. 2011)

ADDITIONAL INFORMATION

• Biological control websites:
  • Cornell University :: IPM Program
  • North Carolina State University :: NSF Center for IPM (CIPM)
  • North Carolina State University :: Cooperative Extension :: IPM
  • Purdue University Extension :: Entomology :: Biological Control :: common natural enemies
  • University of California :: Statewide IPM Program