Posts Tagged: host plant
Weeds as reservoir for Impatiens Necrotic Spot Virus (INSV)
Richard Smith is the University of California Cooperative Extension Monterey County Vegetable Crop Production and Weed Science Farm Advisor. He also covers Santa Cruz and San Benito counties. Weeds are an important host of Impatiens Necrotic Spot Virus (INSV) in the Salinas Valley. It is a...
Gray Hairstreak Host Plant: A Record of Some Kind?
Where are the monarch butterflies? They're MIA on the four species of milkweed in our Vacaville pollinator garden But milkweed attracts other insects, including honey bees, carpenter bees, bumble bees, assassin bugs, syrphid flies, leafcutter bees, Anthophora (genus) bees, wasps,...
The gray hairstreak, Strymon melinus, finds a play her lay her eggs, on the buds of a tropical milkweed, Asclepias curassavica. (Photo by Kathy Keatley Garvey)
Gray hairstreak, Strymon melinus, laying eggs on the buds of a tropical milkweed, Asclepias curassavica. (Photo by Kathy Keatley Garvey)
The importance of reducing winter weed host plants for INSV control
Richard Smith is the UC Cooperative Extension Vegetable Crop Production and Weed Science Advisor for Monterey, Santa Cruz and San Benito counties and Daniel Hasegawa is a USDA ARS Research Entomologist for the Crop Improvement and Protection Research Unit in Salinas, California. From the Salinas...
Photo 4. Sow thistle seedling (common in crop and non-crop areas)
Photo 5. Lambsquarter seedling (common warm season weed that germinates in late spring)
Photo 6. Shepherd's purse seeding (common year-round weed in production fields and ditches)
Photo 7. Nettleleaf goosefoot (common summer weed that can grow in the winter as well)
Photo 8. Mare's tail (typical dense infestation of mature plants)
Photo 9. Burning nettle
Photo 10. Field bindweed (perennial around fields; infected plants can begin the season infected)
Photo 11. Purslane (common summer weed)
Photo 12. Hairy fleabane (common summer annual that germinates in the winter)
Photo 13. Hairy nightshade (common summer annual that can survive into the winter)
Targeting Insect-Host Plant Research
It's exciting to see a promising career unfold. We first met UC Davis graduate student Alex Van Dam in 2010 when he received a $12,000 award from the University of California Institute for Mexico and the United States (UC MEXUS), an academic research institute dedicated to encouraging,...
Alex Van Dam, photographed next to a giant cactus.