• Boisduval scale

  January 1, 1970

  General These three species of Diaspi s are very similar in their appearance and damage symptoms. Here, the Boisduval scale is described in more detail, as it is the most important one. The Boisduval

• Diamond back moth

  January 1, 1970

  General The diamond back moth (Plutella xylostella) belongs to the family of Plutellidae . It only attacks Brassicaceae species, including cruciferous weeds. The diamond back moth (Plutella xylostella

• Cabbage moth

  January 1, 1970

  General The cabbage moth (Mamestra brassicae) is a highly polyphagous defoliator. Besides being a major cabbage pest, it feeds on 70 plants of 22 families, among them crops such as sweet pepper, tomat

• Potato aphid

  January 1, 1970

  General The potato aphid ( Macrosiphum euphorbiae ) is of North American origin, but is these days distributed throughout the world. It is a highly polyphagous species with a preference for Solanaceae

• Crane flies

  January 1, 1970

  General The larvae of crane flies , called leatherjackets, live in the soil and feed on roots and shoots (which they pull into the ground of mainly grasses and cereal crops. The adults do not cause an

• Impatiens thrips

  January 1, 1970

  General Impatiens thrips (Echinothrips americanus) is an increasing problem in greenhouse cultivation, having spread to many countries within the last 30 years. The thrips have mostly been able to spr

• Geranium aphid

  January 1, 1970

  General Acyrthosiphon malvae rogersii is a pest of strawberry that is widely distributed in northern and western Europe. Damage symptoms Wingless aphids may form large colonies on young strawberry fol

• Oleander scale

  January 1, 1970

  General Aspidiotus nerii , the oleander scale or white scale belongs to the Coccoidea and has an almost worldwide distribution. Host plants include olive, apple, mango, palms, oleander and citrus. Dam

• Long-tailed mealybug

  January 1, 1970

  General Pseudococcus longispinus occurs naturally in tropical and sub-tropical regions, but these days it is widespread throughout the world. The range of host plants of Pseudococcus longispinus is le

• May beetle

  January 1, 1970

  Overview May beetles are beetles from the Scarabaeidae family, and are plant-eating species from the Melolonthinae subfamily. Although this subfamily contains a number of species which cause damage to