• Asian citrus psyllid

  citrus psyllid, ( Diaphorina citri ), is an important pest of citrus in several countries as it is a vector of a serious citrus disease called greening [...] Mexico however the state of Florida is the most affected area by the vectored disease. Damage symptoms The psyllid is a sucking insect that inserts its mouthparts [...] plants and then disease is spread when adults fly to a healthy plant and injects bacteria into it as they feed. The disease can kill a citrus tree in as little

• Corn rootworm

  virgifera virgifera ) is a chrysomelid beetle originating from North America, where it is regarded as the main pest of maize. Nowadays it is present in many [...] European countries, including Italy, where it is widespread in the maize-growing areas in the north. Maize is the only crop in which high population densities [...] consequently it is susceptible to serious damage. Adults may also be found on Poaceae, Asteraceae, Fabaceae and Cucurbitaceae. Damage symptoms Damage is caused

• Chilli thrips

  known as the chilli thrips, is an emerging pest of significant concern in greenhouse cultivation. Known for its ability to damage a wide variety of crops, including [...] its rapid reproduction and widespread adaptability. Scirtothrips dorsalis is a quarantine pest under EU Plant Health Regulation 2016/2031/EC and EU Regulation [...] grey in colour. Life cycle is short and completed in 15 to 20 days as many as 25 overlapping generations per year. Reproduction is both by sexual and part

• Walnut husk fly

  Rhagoletis completa) is of American origin. It occurs in Europe since the 1990s and is now established in several European countries where it a pest of walnut [...] adult walnut husk fly is 4-5 mm long. It has a reddish brown to yellowish brown body with a creamy yellow scutellum. The wings are clear and marked with [...] symptoms Infested fruits bear a small, back oviposition scar. Later the surface of the fruit blackens and the underlying tissue is destroyed and turns black

• Pepper weevil

  the best approach is to monitor them during the cooler parts of the day, as this is when they are most active. Another recommendation is to inspect the ground [...] reddish-brown, or nearly black. Their main distinguishing feature is a ‘snout’ which is longer than their head and prothorax. Two days after hatching and [...] ground, it is clear that the crop has been very severely damaged. Lifecycle and appearance of the pepper weevil Newly hatched adults have a light brown

• Chestnut fruit moth

  splendana ) is a pest of chestnut and occasionally walnut. It is widely distributed in Europe. Damage symptoms A part of the kernel of the chestnut is destroyed [...] developing embryo is visible as a purplish-red ring. The larvae are up to 15 mm long, greyish green to yellowish with and translucent, with a yellowish brown [...] Chestnut fruit moth The adults have a wing span of 14-22 mm, greyish white forewings, suffused with darker grey and brown, and a large submarginal ocellus, with

• Beet armyworm

  wild vegetation during the summer. It is highly polyphagous, feeding on plants of more than 20 families. It is a serious pest in greenhouses, where it [...] worst damage is caused by attacks on flowers and buds. Life cycle and appearance of Beet armyworm The beet armyworm (Spodoptera exigua) is a small, nondescript [...] dark, wrinkled stripes dorsally and a yellow band running the length of the body on either side, above which there is a black dot on each segment. The young

• Oriental fruit moth

  full-grown larva has a length of approximately 12 mm, and is pink to almost red. The head and the anal plate are brown. They have a black anal fork (anal [...] (anal comb) above the anal opening. The cocoon is a protective covering for the full-grown larva and pupa. It is made of silken threads and particles of the [...] molesta ) is an important pest of peach and nectarines; other fruit trees like apple, pear, almond and apricot are also attacked by this pest. It is native

• Banana moth

  clear, yellowish-brown. The moth is about 1 cm long with a wingspan of 18 to 26 mm. The forewings are brown suffused with a golden glow and with two small [...] pupae are brown and usually less than 1 cm long. The cocoon is spun at one end of a borehole and is usually 1.5 cm long. Before the moth emerges, the pupa works [...] countries, but was eradicated in some. The species is polyphagous and feeds on plants of 22 families. It is an important pest in banana and can also attack

• Aphidalia

  one cotton bag per tree and up to 3 bags for large trees. Consult a Koppert advisor or a recognized distributor of Koppert products for advice on the best [...] Application Open the bag and attach it to the tree near the first branch with a nail or wire stitch Apply 1 bag per 25 cm stem diameter, maximum 3 bags per [...] best strategy for your situation. Environmental conditions Adalia bipunctata is most effective at temperatures between 15 and 30°C (59 and 86°F). Storage