• Boisduval scale

  near the centre of the scale called the exuvium. Adult females can produce up to 200 eggs and live up to seven months. Eggs hatch within five to seven [...] 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 [...] under the scale and become crawlers. The crawlers move out to look for a suitable place to feed and become sessile usually after a few hours The development

• Plant Disease Management

  cause diseases in plants. The primary goal of biological control is to reduce the damage caused by these pathogens while minimizing the use of chemical [...] method used to manage and reduce the impact of plant diseases by utilizing beneficial organisms. This method relies on the use of living organisms to suppress [...] preventing the disease from spreading further. Crop rotation Crop rotation is a fundamental strategy, which means avoiding planting the same crop in the same

• Citrus mealybug

  photosynthesis in the leaves also reduces flower and fruit production. In ornamental crops, the mere presence of mealybugs is sufficient to render the product [...] poses a problem in greenhouse horticulture, and in the tropics and sub-tropics on outdoor crops. The insect causes damage especially in fruit trees and [...] active in their search for a new feeding place and are capable of moving a reasonable distance over the plant. The male nymph attaches itself to the plant

• Southern European marshland pyralid

  caterpillars often stay in the lower strata of the crop, sometimes attacking the stem of the plant as well as the leaves. Late instar larvae burrow into soft [...] even been known for the caterpillars to inflict damage to the roots of crops cultivated in an ebb-and-flow irrigation system. The damage threshold varies [...] groups of 5 to 10 eggs, overlapping in a tile-like fashion on both the upper and lower surface of leaves close to the veins, or low on the stem or stalk close

• Olive scale

  is. Eggs are protected under the shield until they hatch. The emerging crawlers settle mostly along the main veins on the lower sides of mature leaves [...] General The olive scale, Saissetia oleae , is a cosmopolitan pest of citrus and olives and occurs widely in tropical regions and in greenhouses throughout [...] surfaces. The honeydew may attract attendant ants and sooty moulds grow on the sugary deposits. Removal of large quantities of sap debilitate the plant and

• Goat moth

  spines on the abdominal segment. The moths fly at night in June or July and lay eggs on tree trunks in batches of up to 50. After the eggs hatch, the larvae [...] larvae bore into the bark and down to the sap wood. Development takes 3 or 4 years. The larvae feed on the wood most of the time hibernating in their galleries [...] trees. It is widespread in Europe. Damage symptoms Feeding galleries are very extensive and the larvae burrow in all directions in both sap and hart wood

• Tomato russet mite

  first time in 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 [...] appears to be divided into two parts: the head with the mouthparts, and the rest of the body. All mobile stages have only two pairs of legs, whereas other mite [...] rusty brown colour, and in serious cases they may snap. The fruit can also be affected, and when this happens in tomatoes, the skin becomes coarse and

• Impatiens thrips

  from egg to adult on the plant, specifically on the leaves. Eggs are deposited in the leaf tissue, while subsequent stages are found on the upper- and [...] causing the surrounding tissue to die. The resulting silver-grey patches on leaves and the black dots of their excreta indicate their presence in the crop [...] americanus is often found low in the crop. In sweet pepper the damage can be seen as discolouration of older leaves at the bottom of the plant.

• American serpentine leaf miner

  falls to the ground. This occurs in the early morning. The larva crawls into the ground to pupate. A small percentage of the larvae remain hanging on the [...] miners cause damage to plants both directly and indirectly. The most direct damage is caused by the larvae mining the leaf tissue, leading to desiccation, premature [...] hard to distinguish from feeding spots. The larvae of Liriomyza trifolii are entirely ochre-yellow. When the larva hatches from the egg, it begins to eat

• Pherodis Fruit Fly Attractant

  action Flies are attracted by the luring substance and enter the trap. Once inside, they cannot escape and drown in the luring substance. Presentation [...] Application Fruit Fly Attractant is ready to use Fill the Drososan trap with 200 ml of the luring substance Refill when the luring substance has evaporated or [...] is saturated with flies Dosage For the number of traps to be used see instructions for Drososan . Combined use Use in combination with Drososan traps. Storage