• Citripar

  to make a hole in the sticker on the lid. Use the label to hang the tube in the crop following the instructions on the label itself. Hang the tube on a [...] develop in the mummified skin of the host and look like swollen mealybug larvae. Empty pupae have an irregular exit hole at the posterior end of the mummy after [...] occur is 13°C/55°F; the highest temperature is 38°C/100°F. Combined use Should be combined with Cryptobug or Cryptobug-L for effective control of the mealybugs

• Loose smut of barley

  survives inside the seed and when the seed germinates, the mycelium of the fungus grows upwards inside the plant into the growing tip and the seed primordia. It [...] smut of barley The seeds are infected during flowering and the infected seeds are the primary source of inoculum in the next crop. The fungus survives [...] invisible until head emergence. The first sign of infection is the appearance of a smutted ear. Instead of normal tissue, the ear contains a mass of olive-brown

• Potato aphid

  therefore need to extract large quantities of sap to get sufficient protein. The excess sugar is secreted in the form of honeydew, making the crop and its [...] from the plant and disturb the balance of growth hormones. As a result, the plant’s growth is retarded giving rise to deformed leaves or, if the infestation [...] General The potato aphid ( Macrosiphum euphorbiae ) is of North American origin, but is these days distributed throughout the world. It is a highly polyphagous

• Orange

  About The orange and in particular the sweet orange is the fruit that derives from the citrus species Citrus X sinensis that belongs to the family of Rutaceae [...] mandarin. The hybrid however is not a basic backcrossed BC1 hybrid, but the orange is actually hybridized over multiple generations. When it comes to the fruit [...] various kinds of oranges, the fruit of the Citrus X sinensis is regarded as a sweet orange, while the fruit of the Citrus X aurantium is recognized as a bitter

• Southern blight

  southern blight is a disease caused by the fungus Athelia (Sclerotium) rolfsii . It is an important plant pathogen that inhabits the soil, and is responsible [...] lesions on the stem. As the damage progresses, it causes darkening and rotting of the stem, resulting in the destruction of the cortex and the main root [...] and roots. The main damage caused by damping-off is reduction of the stand, meaning it is very often necessary to replant, which increases the crop's production

• Amblyseius swirskii

  in the crop, not exposed to direct sunlight Sachets already have an exit hole Hold sachets by the cardboard strip at the top, to avoid damaging the predatory [...] according to the prey eaten, and varies from almost lucent whitish to opaque white or yellow. Due to their size and colour they are difficult to spot in [...] the cap to open the dosage hole Sprinkle material on leaves or pour into Diboxes Make sure the material remains on the introduction site for at least a

• Onion thrips

  cause damage to plants by piercing the 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 dots of their excreta indicate their presence in the crop. The vigour of the plant is reduced by loss of chlorophyll [...] General The onion thrips (Thrips tabaci) is distributed throughout the world. It is found outdoors on many plants and particularly damaging on onions,

• Asian citrus psyllid

  most of the southern states and Mexico however the state of Florida is the most affected area by the vectored disease. Damage symptoms The psyllid is a sucking [...] when the insect is vector of the bacterium Candidatus Liberibacter asiaticus that cause the fatal citrus disease called citrus greening or huanglongbing [...] greening disease or Huanglongbing. It is widely distributed in southern Asia and the disease is responsible for the destruction of several citrus industries

• Bacterial canker of tomato

  expansion of the wilt upwards. Cutting the stem at the foot shows whitish ooze with bacteria in the case of C lavibacter infection, but other than that the disease [...] then growing into the vessels of the plant. Plant growth is inhibited and the plant wilts because the xylem vessels become blocked. The bacterium can survive [...] Clavibacter is a quarantine organism in Europe, which means that strong efforts are used to prevent the bacterium from entering. When the occasional infection

• Early blight

  occur at the side of the stem. Life cycle and appearance of Early blight From the primary infection of leaves, Alternaria solani can spread to the flowers [...] General The only known stage in all Alternaria species is the asexual stage. Conidia and mycelium overwinter in the soil and on crop residues and cause [...] spores surviving in the soil are the main source of infection. Especially wheat and barley reduce the number of surviving conidia in the soil. Use resistant