• Citrus mealybug

  January 1, 1970

  inflict damage on the crop in various ways: Nymphs and females extract the sap from the plant, stunting growth and causing deformation and / or yellowing [...] defoliation. The overall effect is a reduction of photosynthesis and therefore the yield. Flowers and fruit often drop off. Plant sap is rich in sugars [...] greenhouse horticulture, and in the tropics and sub-tropics on outdoor crops. The insect causes damage especially in fruit trees and ornamental crops, particularly

• Southern European marshland pyralid

  January 1, 1970

  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 instar [...] 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. The pinkish red eggs are [...] long and have a creamy white colour. Along the dorsal surface of the body there are pairs of dark dots. The dark head is also conspicuous, as are the four

• Cabbage looper

  January 1, 1970

  cucurbits, soybean, sesame and cotton. One of the reasons why this plague can be serious is that the moth is able to disperse widely, reaching distances of up [...] of plants. The eggs have a spherical shape, with the flattened part attached to the leaf, and are a yellowish or greenish white colour. The Larvae hatch [...] both sides of the body. Pupation takes place in webbed cocoons often on the underside of the host plants. The pupae have a green colour and then change to

• House fly

  January 1, 1970

  Salmonella and E. coli ), protozoan parasites (such as Giardia ), and the eggs of many parasitic worm species. Life cycle and appearance of House fly The adult [...] commensal organism to human populations; the housefly is always found in association with human activity. As the most common species of fly found on livestock [...] represent both a nuisance and a risk for disease transmission. High-density housing systems and abundant manure production create the ideal conditions for maggot

• Sciarid flies

  January 1, 1970

  damage is the immediate result of larvae feeding on the roots. The larvae feed mainly on decaying plant material and on algae and fungi present in the soil [...] cycle and appearance of Sciarid flies The life cycle of sciarid flies has the following stages: egg, four larval instars, a pupal instar, and the adult [...] roots. The larvae can grow to 5 to 12 mm in length and 0.5 to 1.5 mm in diameter. They are legless and have a conspicuous black head. The head is equipped

• Cannabis

  January 1, 1970

  infections, mold, and other fungal diseases. These diseases can make the plants weaker, slow down their growth, and affect the leaves and buds if you don't [...] (IPM) is important when it comes to keeping cannabis plants healthy and productive. This is because cannabis can attract a lot of different pests and diseases [...] mealybugs , scale, and other pest mites like broad mite and hemp russet mites. These pests can damage the plants, which results in less yield and quality. Next

• Shore fly

  January 1, 1970

  Shore fly The life cycle of the shore fly ( Scatella tenuicosta ) has the following stages: egg, three larval instars, a pupa and the adult fly. The eggs are [...] cylindrical. The larvae are found in the top layer of damp soil, where they also pupate. The adult shore fly is black, about 4 to 5 mm long, and stout with short [...] laid singly and are bean-shaped. A first instar larva is translucent white. Second instar larvae are brownish, less translucent and their body is cylindrical

• Western flower thrips

  January 1, 1970

  pupa, and finally the adult insect. The eggs of the western flower thrips (Frankliniella occidentalis) are laid in leaves, flower petals and in the soft [...] Compared to the prepupa, the pupa has longer, more developed wing buds and longer antennae that are curved back over the head. The prepupal and pupal instars [...] cells of the surface tissues and sucking out their contents, causing the surrounding tissue to die. The resulting silver-grey patches on leaves and the black

• Buckthorn-potato aphid

  January 1, 1970

  short and barely exceed half the body length. The aphids overwinter as eggs on buckthorn. After emerging in spring, the aphids mainly feed on the underside [...] aphid does not cause plant deformation. The major problem in potatoes is the transmission of viruses. Life cycle and appearance of Buckthorn-potato aphid [...] their presence in the crop. Wingless females of the buckthorn- potato aphid are 1.1-2.4 mm long and bright pale green to yellowish green. The antenna are relatively

• Horiver Rollertrap

  January 1, 1970

  through the center opening of the roll which will allow the Rollertrap to spin freely while unrolling At the beginning and end of each run, cut the trap [...] attracted to the colour of the sticky trap and get caught in the glue. Presentation Polyethylene ribbon coated with wet sticky glue. Available colours and sizes [...] cm longer than the support structure. Wrap the extra around the support and secure with staples or clips. It may be necessary to secure the Rollertrap mid