• Cabbage looper

  disperse widely, reaching distances of up to 200 km. Damage symptoms The caterpillars feed mainly on the leaves causing irregular holes. The first three instars [...] of Trichoplusia ni Adults can deposit up to 300 eggs on the underside margins of the upper leaves of plants. The eggs have a spherical shape, with the [...] green to pale green with a white band on both sides of the body. Pupation takes place in webbed cocoons often on the underside of the host plants. The

• Tarnished plant bug

  northern Canada to southern Mexico. It is one of the most damaging Hemiptera species, known to feed on almost all commercial crops. Lygus lineolaris boasts [...] are incurred: Buds turn white, fail to develop and drop off; Leaves developing from damaged buds are ragged and discolored; Flowering is delayed, flowers [...] from the edges of nurseries, and destroying favourable overwintering sites. Damage symptoms Lygus bug adults and nymphs attack the seeds, buds and flowers

• Common asparagus beetle

  most asparagus producing regions of the world. Damage symptoms Both adults and larvae feed on the leaves of asparagus. As the larvae feed, they secrete [...] laid singly or in rows of 3 to 10 eggs, standing perpendicularly on the branches and leaves of the asparagus plants. Larvae are dark grey to whitish, have

• Tomato leaf miner

  chrysanthemum and gerbera. Damage symptoms Leaf miners cause damage to plants both directly and indirectly. The most direct damage is caused by the larvae [...] percentage of the larvae remain hanging on the leaf and pupate there, sometimes on the upper surface but more commonly on the underside. The late third instar [...] leaf-fall and cosmetic damage. In (sub-)tropical areas this can lead to burning in fruit such as tomato and melon. Loss of leaves also reduces yield. In

• Southern European marshland pyralid

  decaying organic material on the ground or substrate. They feed on detritus as well as life materials. Young larvae feed on the leaves and flowers before they [...] 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 to the ground [...] pesticides. Damage symptoms The caterpillars often stay in the lower strata of the crop, sometimes attacking the stem of the plant as well as the leaves. Late

• American serpentine leaf miner

  mainly found on gerbera and chrysanthemum. Today the insect is widespread across the whole world. Damage symptoms Leaf miners cause damage to plants both [...] The most direct damage is caused by the larvae mining the leaf tissue, leading to desiccation, premature leaf-fall and cosmetic damage. In tropical and [...] Loss of leaves also reduces yield. In full-grown plants of fruiting vegetable crops, however, a considerable quantity of foliage can get damaged before

• Orius insidiosus

  addition, it feeds on a variety of small arthropods such as whiteflies , aphids , small caterpillars , and mites . It also feeds on pollen. The prey is [...] Thripor-I ) Shake bottle gently before use Spread material on clean rock wool slabs, leaves and/or in application boxes ( Dibox ) Apply in groups of at [...] adults and nymphs are voracious predators, capable of piercing and feeding on the soft bodies of their prey. The predatory bug Orius insidiosus is used

• Potato/tomato psyllid

  Candidatus Liberibacter is considered a quarantine pest. Damage symptoms The main direct damage, caused by potato psyllid nymphs when feeding, is known [...] transmitted by potato psyllid amplifies the feeding damage and causes ‘zebra chip’ in potatoes Indirect damage causes the most harm, since the consequences are [...] are attached to a strand which connects them to the surface of leaves and can be found on the underside and leaf edge. Hatching occurs three to seven days

• Cryptolaemus montrouzieri

  and feed on mealybug nymphs and adults. Pupal stage: Larvae pupate in various places, on any convenient stalk or on the underside of leaves or on even greenhouse [...] in clusters on plant foliage or near mealybug-infested areas. They are typically yellow-white in color and may be found attached to leaves. Larval stage: [...] control . Originating from Australia, this beetle species preys primarily on mealybugs , including species such as the citrus mealybug and the long-tailed

• The Ultimate Guide to Fungus Gnats (Sciarid Fly) and Shore Fly Control

  July 4, 2024

  tapered on both ends. Roughly 2-3mm long and also have the dark spiracles at the posterior end. Damage – Shore Fly Typical signs of Shore Fly damage: Fecal [...] Fecal specking on leaves and flowers Swarms of flies when plants are brushed against by workers or customers Damage – Fungus Gnats Typical signs of Fungus [...] Fungus Gnat damage: Yellowing plants Wilting Winged adults stuck to trichomes (on cannabis) Slime trails on medium surface Larvae visible inside hollow stems