American serpentine leaf miner

cosmetic damage. In tropical and subtropical areas this can lead to burning in fruit such as tomato and melon. Loss of leaves also reduces yield. In full-grown [...] usually of less significance. Seedlings and young plants can be completely destroyed as a result of the direct damage caused by leaf miners. In gerbera [...] toothed ovipositor, usually in the upper side of the leaf. Egg spots are oval and hard to distinguish from feeding spots. The larvae of Liriomyza trifolii are

Two-spotted spider mite

such webs in which the mites live. The webbing and spotting on the leaves affects the appearance of the crop. This is of particular concern in ornamental [...] damage can also be seen on the upper surface of leaves as small yellow dots. The destruction of cells results in reduced photosynthesis, increased transpiration [...] eventually the whole plant, may die. In tomatoes and cucumbers, as little as 30% damage of the leaf surface can lead to loss of the crop. The nymphs and adults

Mediterranean fruit fly

range of unrelated fruits, in fact, practically all the tree fruit crops. It has also been recorded from wild hosts belonging to a large number of families [...] laid below the skin of the host fruit. After hatching, the larvae feed on the flesh of the fruit. As each fly lays several eggs in a fruit and different [...] widespread in Africa, the Mediterranean basin and South America. Ceratitis capitata is a highly polyphagous species whose larvae develop in a very wide

Greenhouse whitefly

solutions for whitefly in your crop Damage symptoms The larvae of whitefly need a lot of protein for growth, and thus consume a large quantity of plant sap. This [...] the physiology of the plant, as a result of which growth is retarded. In full sunlight, leaves can wilt and fall. Such leaf damage can in turn influence [...] The consumption of plant sap and secreting of honeydew by whiteflies reduce the aesthetic value of crops. This is particularly important in ornamentals .

Codling moth

caterpillars of the last generation overwinter and pupate in spring. Larvae still in the apples at harvest can often be found in cracks in apple boxes or [...] is a notorious, worldwide pest of apple and also occasionally of pear, quince, peach and other fruits. It is very common in Europe. Damage symptoms After [...] prematurely and drop off. Life cycle and appearance of Codling moth The adults have a wing span of 15-22 mm, blackish-brown forewings, suffused with ash-grey

Oleander scale

photosynthetic area of the plants, leading to lower yield. Damage to fruit occurs in heavy infestations, where spotting and often deformity of fruits affects [...] symptoms Scale infestation can be seen by the appearance of the scale armour on stems, leaves and fruits of hosts. Infestations on the leaves and stems may cause [...] affects market value. In olives this is seen as green spots on purple fruits. Damage to foliage is particularly important in ornamentals . Heavy infestation

Sciarid flies

areas in dark places, with a lot of organic material. They occur the whole year round. The eggs are minute (0.1 to 0.25 mm) and yellowish white in colour [...] parts. Pupation takes place in a small hole in the ground. Pupae are white, but later become yellow to brown. The posterior end of the pupa remains mobile [...] family of Sciaridae. The species that cause most damage to crops belong to the genera Bradysia and Lycoriella . Lycoriella species are mainly found in commercial

Long-tailed mealybug

an adequate intake of protein, mealybugs must therefore ingest large quantities of sap, getting rid of the excess sugars in the form of honeydew. Charac [...] reduction of photosynthesis and therefore the yield. Flowers and fruit often drop off. Plant sap is rich in sugars, but low in proteins. In order to gain [...] the reduced level of photosynthesis in the leaves also reduces flower and fruit production. In ornamental crops, the mere presence of mealybugs is sufficient

Nutari

cucumeris , Transeius montdorensis ) in the beginning of the season and at low prey densities. Mode of action When density of the target pest is low and there [...] available in the crop Nutari can be provided as alternative food source for predatory mites . This will ensure a standing army of predatory mites in the crop [...] tolerant to a wide range of conditions and generally survives in conditions suitable for predatory mites . Precautions Application of this product can cause

Diamond back moth

They are deposited singly or in small groups of two or ten eggs on both the upper and lower surface of leaves, preferentially in depressions, and rarely on [...] chlorophyll-rich green areas of stems and pods causing whitening of the crop. Heavily damaged plants appear stunted and will, in most cases, die. On rapeseed [...] young seed pods, causing loss of pods and seeds. Life cycle and appearance of Diamond back moth The oval and flattened eggs of the diamond back moth (Plutella