• Tutasan

  Maintain a distance of 15-20 metre between traps A continuous water supply is needed to ensure that the trap works correctly. If the trap is not connected [...] monitoring and trapping male tomato leaf miner moths in combination with Pherodis Tuta absoluta . Pests Tomato leaf miner moth ( Tuta absoluta ). Crops [...] indicated If possible connect the trap to a dripper and make sure the water drips properly into the trap Add a small quantity of vegetable oil or liquid

• Caterpillars

  can rapidly decimate a plant. Very small caterpillars are not able to chew and therefore graze the underside of leaves. This causes a window effect where [...] Koppert Kenya is Empowering Small-holder Farmers Through Biological Innovation The Silent Threat to Kenya’s Avocado Industry: How Koppert is Leading the [...] plants and directly affects yield and quality. Effective caterpillar control is therefore essential for maintaining healthy and productive crops. Biological

• Potato/tomato psyllid

  Overview It is a pest of huge economic importance, which initially affected potatoes and in recent years has become a problem for other Solanaceae crops [...] parts of Europe, and the import into Mexico, is difficult, since Candidatus Liberibacter is considered a quarantine pest. Damage symptoms The main direct [...] purple colouration of the leaf bases and internodes, and poor-quality fruit. The bacterium Candidatus Liberibacter solanacearum which is transmitted by potato

• Tomato russet mite

  Australia and is a pest in tomatoes in all areas where they are grown. Other members of the plant family Solanaceae may be affected to a lesser extent [...] The first nymphal stage is a transparent white colour and about 0.1 mm long. They usually develop to the 2nd stage within a day. All life stages look [...] Damage symptoms Damage is caused by the mites sucking out the contents of plant cells. Affected leaves are slightly curled and acquire a silvery sheen on the

• Cotton leafworm

  littoralis) is a highly polyphagous species feeding on plants of 40 families, containing 87 species of economic importance. It originates in Egypt, and is currently [...] median vein. The ocellus is marked by two or three oblique whitish stripes. The front of the wingtip has a blackish marking, which is more pronounced in the [...] the Azores. Damage symptoms Most of the damage is caused by the older caterpillars which are voracious leaf feeders. Extensive feeding by the larvae may

• Greenhouse whitefly

  whitefly need a lot of protein for growth, and thus consume a large quantity of plant sap. This contains a high proportion of sugar, and the excess is excreted [...] remain flattened on the leaf. The fourth larva stadium develops into a white, oval case encircled by a ring of erect waxy rods. This is called the pupa stadium [...] es: If the population is very large, feeding on plant sap can affect the physiology of the plant, as a result of which growth is retarded. In full sunlight

• Leek

  plant that can be eaten is at times erroneously called a stem or stalk. This part is actually a bundle of leaf sheaths. This bundle is blanched by putting [...] ‘trenching’). The plant is usually sold as a small seedling and planted in a greenhouse. Later on, as weather permits, the leek is planted outside in the [...] Once outside, the plant is rather hardy and many varieties can be left in the soil during winter and harvested when there is a need for them.

• Cyclamen mite

  General The cyclamen mite ( Phytonemus pallidus ) is a harmful strawberry pest as well as a common pest found in cyclamen, gerbera and other ornamentals [...] smaller than usual. In cyclamen, the flowers are damaged and leaf growth is inhibited. In hedera, a mite attack can cause baldness in parts of the stem. Gerbera [...] stage (pharate nymph). This is a transitional stage between larva and adult mite during which the mite remains immobile on the leaf surface and does not feed

• 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

• Diamond back moth

  xylostella) is suggested to have its origin in Europe, South Africa or East Asia, but is now present wherever its cruciferous hosts exist and it is considered [...] species. It is highly migratory and wind-borne adults can travel long distances to invade crops in other regions. Damage symptoms The caterpillar is a surface [...] are like those of the males. The back is marked with a broad cream or light brown band along the back, which is sometimes constricted to form one or more