Pseudococcus viburni (formerly Pseudococcus affinis (Maskell), and commonly known as the obscure mealybug and tuber mealybug) is a close relative of the grape mealybug (P. maritimus) and a pest of the vineyards around the world.

Mealybugs can build up in grapes, especially the vine mealybug, a new invader that attacks roots as well as aboveground parts, but the grape, obscure, and longtailed mealybugs also occur.

May 31, 2016 · P. viburni, commonly known as obscure mealybug, is an unarmoured scale insect and a common pest in the UK, Netherlands, Australia, New Zealand, the French Riviera, Iran, California and Chile. It can affect a number of fruit and nursery plants including apples, tomatoes, orchids and cacti and cause substantial damage to fruit orchards and vineyards.

Obscure mealybug is an introduced species that has been present in California since the late 1800s. Because it is an exotic pest, it has few natural ene-mies. Obscure mealybug has a narrower tolerance to cold temperatures than the grape mealybug and …

Three species of mealybugs in the genus Pseudococcus may infest vineyards: the grape, obscure, and longtailed mealybugs. The primary species of concern in North Coast and San Joaquin Valley vineyards are the grape and obscure mealybugs.

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Pseudococcus includes grape (all growing regions), obscure (North Coast and San Joaquin Valleys, and longtail mealybug (Central Coast). Species in the genus Pseudococcus have parallel sides, rounded posterior and anterior ends, and the filaments around the body are thin and long.

Mar 23, 2021 · The obscure mealybug, Pseudococcus viburni (Signoret) (Hemiptera: Pseudococcidae), is an important polyphagous, cosmopolitan insect pest of fruit crops, including apples, pears and grapes.

Pseudococcus viburni (formerly Pseudococcus affinis (Maskell), and commonly known as the obscure mealybug and tuber mealybug) is a close relative of the grape mealybug (P. maritimus) and a pest of the vineyards around the world.

Obscure mealybug. Pseudococcus viburni. Life Cycle. Grape and obscure mealybugs lay yellow to orange eggs within an egg sac; longtailed mealybugs give birth to live crawlers. Crawlers of all three species are yellow to orange-brown in color.