The seedcorn maggot (Delia platura) is a pest that eats seeds and seedlings, and is prevalent in the spring after a wet period. It is in the same genus as the cabbage maggot, and looks the same. It is also known as the larva of the bean seed fly. It is abundant in California, primarily in […]
The genus Delia is a group of flies that are pests to many agricultural crops, primarily in their larval, or maggot, stage. Many individual pest pages redirect here. Physical Description Egg eggs are small and white (~1mm) some of the species’ eggs are slightly curved with a bluntly rounded end Larva Cabbage Maggot images from Google […]
Moles are usually not after your plants, but the grubs and insects that are after your plants. Unfortunately, they often undermine plant roots (which causes damage to the plant) or just make ugly molehills and tunnels. Physical Description Google Images Molehills and tunnels are usually all you see of this pest, other than sunken or loose […]
Quick Intro Physical Description Leatherjackets are the larvae of crane flies and are pests to several crops. They feed on roots, crowns and sometimes leaves of crops. Species & Taxonomy Kingdom: Animalia Phylum: Arthropoda Class: Insecta Order: Diptera Family: Tipulidae Genus Species: Lifecycle Plants Affected cabbages Plants Unaffected Geographical Range Signs & Symptoms […]
Harlequin bugs are part of the big family of bugs known as Stink Bugs. All but two of this large group of insects are pests to crops. Get familiar with the two good guys (the Two-Spotted Stink Bug & the Rough Stink Bug) so you don’t accidentally kill them. Click the links for some google […]
Clubroot is caused by the soil-borne fungus Plasmodiophora brassicae, and it is the most serious disease of the brassica family. Physical Description Very serious problem where fungus attacks roots and kills the plant Google images of clubroot Species & Taxonomy Kingdom: Rhizaria Phylum: Cercozoa Class: Phytomyxea Order: Plasmodiophorales Family: Plasmodiophoraceae Genus Species: Plasmodiophora brassicae Lifecycle spores are […]
Quick Intro Physical Description Species & Taxonomy Kingdom: Phylum: Class: Order: Family: Genus Species: Lifecycle Plants Affected Plants Unaffected Geographical Range Signs & Symptoms Whole Plant Leaves Flowers Fruit Roots/Tubers How to Positively Identify Treatment Prevention & Control Cultural Controls: Habitat: Temperature & Humidity: Mulching & Cultivation Practices: Natural […]
Quick Intro Physical Description Google Images Larvae green and velvety-looking start out small, but can get up to an inch long often a yellow stripe can be seen running down their back move slowly Species & Taxonomy Kingdom: Phylum: Class: Order: Family: Genus Species: Pieris rapae Lifecycle Plants Affected Plants Unaffected Geographical Range […]
General name for any of the caterpillars or larvae that feed on cabbage and other brassicas. Specific pests include: Cabbage Caterpillar Small White Large White Southern cabbage butterfly Green-veined white Cabbage Looper Cabbage Webworm Diamondback Moth Leaf miner Imported Cabbageworm
Also known as: cabbage fly cabbage root fly root fly turnip fly root maggot Please see “Delia Species” for information on this pest.