Fall Armyworm

symptoms The developing larvae eat different parts of the host plant, depending on the crop, the stage of crop development, and the age of the larvae. On [...] instars that vary in colour from light tan to green to black. They have a distinct white inverted Y-shaped mark on the front of the head and four large [...] spots on the upper surface of the last segment. Pupae are reddish brown and measure 13 to 17 mm in length. The eggs hatch after 3-5 days. Over the next 2

Cotton aphid

food source and the density of the population. Large individuals (up to 1.8 mm long) are usually dark green to black, while aphids produced in overcrowded [...] plant’s growth is retarded giving rise to deformed leaves or, if the infestation occurs early enough in the season, the death of young plants. Retarded growth [...] skin, betraying their presence in the crop. The cotton aphid can be distinguished from other aphids by the colour of the two cornicles (siphunculi). These

Diglyphus isaea

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 D. sibirica has short [...] of the crop in the morning or in the evening The dosage of the parasitic wasp Diglyphus isaea depends on climate, crop and leaf miner density and should [...] body, and the third larval instar is blue-green. The full-grown larva usually pupates in the mine some distance from the dead host. Pupal stage: The pupa lies

Cabbage moth

colour from green or brown to black. In younger instars, the relatively large head capsule is conspicuous. In older instars, the lighter colour of the bands [...] grey-brown to black forewings, with a kidney-shaped white-rimmed marking in the middle. The hindwings are light brown with a rather inconspicuous spot in the [...] with white spots, and the abdomen is a pale, greyish brown. The moth flies only at dawn and dusk, hiding in the crop during the day. Several days after

Corn earworm

of green ears of corn. The larvae feed on the hairs of the young corn and on the young kernels at the tip of the cob. During the third instar, the larvae [...] one caterpillar surviving, which will start to feed again on the tip of the cob, making holes in the corn. In other crops, they prefer flower buds and soft [...] open the crop to detect the pest. Life cycle and appearance of the corn earworm The eggs of corn earworm are a milky-white colour, which turn dark grey before

Cannabis aphid

Early in the season, the aphids are nearly colourless to pale yellow, and as the days become shorter, they change to light green or brown with dark green [...] closely resembles the hop aphid ( Phorodon humuli ), to the point that microscopic analysis of the head is required to distinguish them. The hop aphid is common [...] her eggs on leaves, flowers and stems to overwinter and produce the next generation of aphids in the spring. In greenhouses, sexual reproduction is very

In Partnership with Nature

In Partnership with Nature For the better health of people and the planet outperformed the Styrofoam packaging in maintaining the required temperature [...] Styrofoam to a fully recyclable package for shipping. Over the next several months, you will start to see this new packaging. At first the switch to the new [...] mixture of the two shipping methods. Our goal is to completely switch to the new recyclable packaging by the end of 2019. This method will enable us to transport

Asian citrus psyllid

industries in Asia and Africa. In North America, it has spread through most of the southern states and Mexico however the state of Florida is the most affected [...] disease called greening disease or Huanglongbing. It is widely distributed in southern Asia and the disease is responsible for the destruction of several citrus [...] done when the insect is vector of the bacterium Candidatus Liberibacter asiaticus that cause the fatal citrus disease called citrus greening or huanglongbing

Diamond back moth

antennae. The hindwings are narrow, pointed toward the apex. The tips of the wings appear to turn upward slightly when viewed from the side. In males, the upper [...] may occur in the florets. Initially, the pupa is pinkish-white to pinkish-yellow and changes to brown before adult emergence. The adult of the diamond back [...] white upper edge. In females, the upper two-thirds of the forewings are light ochreous and the markings are like those of the males. The back is marked with

Cotton leafworm

caterpillars crawl to the ground and settle in the surface layers. The pupa is 15 to 20 mm long and reddish brown in colour. The forewings of the adult cotton [...] results in shedding or drying up of the buds. Yellowish to dark-green larval excrement protrudes from the holes they have produced. On tobacco, the stem base [...] yellow. They are laid in clusters of 20 to 500 pieces on lower leaf surfaces, often on the lower parts of the plant. The female covers the eggs with brownish-yellow