Blight of pepper

cells which are resistant to desiccation) or mycelium. Zoospores are formed from the overwintering structures which infect the host. Zoospores are spores with [...] enable them to move through water. Infection is usually from the root to the foot, but direct infection of the foot also occurs. Exudates leaking from growing [...] of Blight of pepper Phytophthora species are very destructive organisms belonging to the Oomycetes and are therefore strictly speaking not fungi. They

Corn earworm

the ground to bury itself around 10-12 cm deep. This prepupal stage takes one to two days. It then pupates for ten to fourteen days, or three to five months [...] cobs and ears. Adults of corn earworm are nocturnal, since they react to light radiation at night and are attracted to light traps, especially using ultraviolet [...] makes it necessary to 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

Grape powdery mildew

shoots and buds spread through air from plant to plant. Warm temperature with enough humidity and cloudy weather are favourable conditions for the pathogen [...] patches on the affected plant parts. All the above ground plant parts are susceptible to infection. Powdery growth on both the surface of the leaves. Affected [...] shedding of leaves. Spray Veni GoKlean at the rate 1.25 to 1.5 ml per litre of water at 12-15 days intervals as preventative spray and or after recognition

Privacy Statement

transmitted to and stored by Google on servers in the United States. Google uses the information from Google Analytics to track how our site is used, to compile [...] We may also use it to optimize the website. Such data will not be provided to third parties. We use Google Analytics to track how visitors use our site [...] for us, and to provide its advertisers with information on how effective their campaigns are. Google may also transfer this information to third parties

Apple collar rot

cells which are resistant to desiccation) or mycelium. Zoospores are formed from the overwintering structures, which infect the host. Zoospores are spores with [...] enable them to move through water. Infection is usually from the root to the foot, but direct infection of the foot also occurs. Exudates leaking from growing [...] of Apple collar rot Phytophthora species are very destructive organisms belonging to the Oomycetes and are therefore strictly speaking not fungi. They

Cotton aphid

(up to 1.8 mm long) are usually dark green to black, while aphids produced in overcrowded colonies at a high temperature can be much smaller (from 0.9 [...] extract nutrients 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 [...] sugars, but has a low protein content. Aphids therefore need to extract large quantities of sap to get sufficient protein. The excess sugar is secreted in the

Grape downy mildew

grape cultivars are highly susceptible to downy mildew. Breeding programs started in the 1930s and have focused on incorporating resistance from wild Vitis [...] instead of overhead irrigation to reduce leaf wetness. Ploughing to bury oospores in leaf litter and avoiding prolonged irrigation to prevent oospore germination [...] temperatures reach 10°C and soils are wet, forming macrosporangia that release zoospores within 24 hours. The zoospores are dispersed by rain, encyst near

American serpentine leaf miner

spots are oval and hard to distinguish from feeding spots. The larvae of Liriomyza trifolii are entirely ochre-yellow. When the larva hatches from the egg [...] miners cause damage to plants both directly and indirectly. The most direct damage is caused by the larvae mining the leaf tissue, leading to desiccation, premature [...] leaf miner (Liriomyza trifolii) eats its way outwards from its egg, so that its mines join to form small plates. In various other crops one finds intermediate

Phytophthora blight

cells which are resistant to desiccation) or mycelium. Zoospores are formed from the overwintering structures which infect the host. Zoospores are spores with [...] enable them to move through water. Infection is usually from the root to the foot, but direct infection of the foot also occurs. Exudates leaking from growing [...] of Phytophthora blight Phytophthora species are very destructive organisms belonging to the Oomycetes and are therefore strictly speaking not fungi. They

Grape mealy bug

causes increasing threat to grape cultivation which leads to considerable yield loss. Damage symptoms Adults and nymphs suck the sap from the leaves, shoots [...] and eggs are orange in colour. First instar nymphs also called as crawlers are mobile, start sucking the plant sap and form colonies and are orange in [...] in colour. Female mealy bugs are abundantly found causing damage to the crop while males are very rare. Females reproduce partheno-genetically without mating