False Chinch Bug

Pest: False chinch bug (Nysius raphanus)

Pest Type: Insect Pest, true bug

Chinch_(PSF)

Picture credit: copyright Jim Moore, 2003

Major Identifying Features: Adults are grayish-brown, slender, 1/8 to 1/6 inch long, wings form an X when overlap on the back, nymphs lack wings, are mottled gray brown and look like coffee beans with red/orange markings on the abdomen, they have a hypodermic-needlike feeding structure and suck plant juices

Life Cycle: Overwinter as nymphs and adults in plants or debris, feed on mustard greens, adults lay eggs in soil cracks around plants, nymphs molt three times and develop into adults in about 3 weeks, they have several generations per year,

Pest Rating: Minor to moderate

Management Rating: Easy to moderate

Host/Season/Outbreak Information: Grassy or weedy fields, pastures, foothills, wet and cool springs can cause serious outbreaks, hosts include mustards, young almond, pistachio, pomegranate, citrus

Damage Information: In normal years, damage only occurs on small seedlings and plants rarely die, in wet years populations can grow to siginificant numbers which can cause (in rare cases) to tree and crop decline, initial symptoms include wilting, followed by death

Management Options: Low numbers do not need to be managed, cultural measures with proper irrigation, physical control by closing windows, cracks, etc.

Sources:

Pests of Landscape Trees and Shrubs (Book)

Picture: http://www.bugguide.net

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s