Diglyphus isaea

from the mine. This is also seen in the pillars that remain visible as black spots in the leaf. The adult is metallic green to black in colour and unlike [...] wasp Diglyphus isaea is available in a bottle ( Miglyphus ). Release parasitic wasps between the leaves of the crop in the morning or in the evening The dosage [...] Diglyphus isaea is a small parasitic wasp belonging to the family Eulophidae within the order Hymenoptera . It is widely recognized for its role as a biological

Aphids

For a large part of the season an aphid population consists of viviparous females. As reproduction is asexual, the progeny of a single female is genetically [...] to the superfamily Aphidoidea. There are over 4,000 species of aphids that have been described, and they can be found in a variety of habitats throughout [...] to the growth of a black sooty mold. Aphids life cycle Aphids have a complex life cycle, with both winged and wingless forms of adults of the same species

Pea leaf miner

miner The life cycle of a leaf miner has the following stages: egg, three larval instars, a pupal instar and the adult fly. Adult leaf miners are small yellow [...] to burning in fruit such as tomato and melon. Loss of leaves also reduces yield. In full-grown plants of fruiting vegetable crops, however, a considerable [...] several millimetres long. When the adult females feed or lay eggs, they bore a hole using their toothed ovipositor, usually in the upper side of the leaf. Egg

Feltiella acarisuga

on various spider mite species, in particular the two-spotted spider mite . Feltiella acarisuga is a key component in integrated pest management (IPM) [...] population. Where there are large, localised concentrations of spider mite, Feltiella acarisuga is a good control agent. The adults are not predatory and [...] appear on the body. A fully grown larva is about 2 mm long. At the end of the last larval stage, the larva spins a white cocoon near a leaf vein and pupates

Cabbage moth

forewings, with a kidney-shaped white-rimmed marking in the middle. The hindwings are light brown with a rather inconspicuous spot in the middle. Head [...] 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 [...] beetroot, onion, rhubarb as well as chrysanthemum and carnation. It is a species found in Europe, North Africa (Libya, Canary Islands), Japan and sub-tropical

Cutworms

and feed mostly at night and hide in the ground during the day. Damage from these instars is usually observed as a cutting of young seedlings, often causing [...] the sap flow in the plant. Life cycle and appearance of Cutworms The adults of Agrotis spp. have pale grey to grey-brown forewings with a faint kidney-shaped [...] marking and a red spot. They have broad hindwings, evenly light or dark grey or orange-yellow with a broad dark marginal stripe. The wingspan is about 40-55

Vine mealybug

effect is a 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 [...] similar to the adult female, even if they are smaller. The prepupa and pupa stages are present only in the male. After a complete metamorphosis, a winged male [...] posterior end. There is often a darker longitudinal stripe running over the body. Damage symptoms Mealybugs inflict damage on the crop in various ways:

Citrus mealybug

effect is a 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 [...] yellow to pink body is visible through its waxy covering. There is often a darker longitudinal stripe running over the body. The adult males are short lived [...] filaments. Their sole task is to fertilize the females and as soon as a male emerges from its cocoon, it goes in search of a female. A fertilized female lays

Mottled arum aphid

Neomyzus circumflexus , has a cosmopolitan distribution and a wide host range. In temperate climates it is primarily a pest in greenhouses where it attacks [...] viviparous females continuously producing new generations of females. There is no sexual stage in the life cycle. Wingless females of the mottled arum aphid are [...] covering the leaves can reduce photosynthesis and also result in an unattractive plant with a much lower market value. Neomyzus circumflexus can also transmit

Strawberry aphid

strawberry aphids overwinter as parthenogenetic forms. There is no sexual stage and no eggs are laid. Adult wingless females of Chaetosiphon fragaefolii are [...] General The strawberry aphid, Chaetosiphon fragaefolii , has a cosmopolitan distribution and is the most important aphid pest of strawberries. It can cause [...] Damage symptoms Chaetosiphon fragaefolii is one of the most serious pests affecting strawberry plants. Direct damage is caused by the aphids sucking sap from