Onion fly

), also referred to as the onion maggot, is a frequent pest that harms allium plants, including leek, garlic, and onion crops. It is a small fly, measuring [...] It can be difficult to identify an onion fly infestation because the signs may not always be visible. But there are a few symptoms to watch out for. The [...] measuring between 5 and 7 mm long, with a grayish-yellowish body and clear wings. The eggs are laid by the female onion fly on the young leaves, necks of onion

Pepper weevil

n is to inspect the ground as well as the flowers and immature fruit, since they throw themselves to the ground and keep still when they detect a threat [...] inside the flower bud, they feed on immature pollen. In both cases, they begin to feed one to four hours after hatching. In total, the larva passes through [...] around seven to eight days, depending on the temperature. When pupation begins, the larva forms a cavity and covers it with its excrement, creating a type of

Horse-chestnut leaf miner

moth is 4-5 mm long and a rich brown colour with bright white chevrons edged with black. The larvae mine in horse chestnut leaves go to four (occasionally [...] instar up to 3.5 mm in the fourth instar. The pupa is brown and is 2.9-4.5 mm long. The horse-chestnut leaf miner overwinters in the pupal stage in a cocoon [...] of the first generation emerge from mid-June to late-July. Cameraria ohridella has two to four generations a year, depending on the temperature conditions

Whitefly

actually refers to the same species. How to prevent whitefly To prevent whitefly infestations in crops, there are several measures you can take: Implement good [...] significant damage to crops by feeding on plant sap and transmitting viruses. The tobacco whitefly is a small, white insect with long antennae and a slightly yellowish [...] favorable for whiteflies. Whitefly control videos Take a look at the video or go to our Youtube channel to see our whitefly control products in action. More

Pierce's disease of grapevine

and tylose, a glue-like substance, in the vessels. The bacteria, gum and tyloses block the vessels, causing the plants to wilt. Transport to different plant [...] from early to midsummer. The necrotic area spreads over the leaf from the margin and is marked by a chlorotic band. In the beginning, only a few leaves [...] symptoms How to prevent Pierce's disease of grapevine Control vectors by using netting or applying insecticides Remove wild host plants and weeds to reduce

Mealybugs and scales

videos Take a look at the video or go to our Youtube channel to see our mealybug control products in action. More mealybug control videos How to get rid [...] ornamental crops, the mere presence of mealybugs is sufficient to render the product unfit for sale. A very small population can thus cause considerable loss of [...] important families within the superfamily Coccoidea. This superfamily belongs to the order Hemiptera (the true bugs ). Coccoidea are at first sight barely

Two-spotted spider mite

of the leaves. Severe infestations can cause the leaves to dry up and fall off the plant. How to prevent spider mite Preventing spider mites in your crop [...] urticae ) is a pest of many crops throughout the world. Despite their small size, they are capable of very rapidly doing severe damage, due to their great [...] about 0.5 mm long. They have an oval body that is rounded at the rear end. Their colour can vary from orange, light yellow or light green, to dark green

Black root rot of cucurbits

like black stripes. The disease is usually restricted to a few of the roots but in severe cases all roots may be infected. At the final stage of the disease [...] infection in this stage may kill the plants. In case of a less severe infection, the vines may wilt at a late stage of the crop, but when water supply is [...] the life cycle. The fungus is dispersed by water, air and soil particles. How to prevent Black root rot of cucurbits Test for the presence of Phomopsis

Diamond back moth

and wind-borne adults can travel long distances to invade crops in other regions. Damage symptoms The caterpillar is a surface feeder. They feed from the [...] disperse, on average, only 13 to 35 m within a crop field, however, they are readily carried by the wind and as such can disperse 400 to 500 km per night. [...] suggested to have its origin in Europe, South Africa or East Asia, but is now present wherever its cruciferous hosts exist and it is considered to be the

Nematodes significantly reduce Tuta larvae

liked the idea of having a minimum impact on the surrounding environment and we wanted to offer safe and sustainable products to our customers,’ Zoboli continues [...] ‘It is better to use them when the larvae are small in order to maximize their effect. When the moment comes, we apply them 3 times at a 5-day interval [...] Agricola Gandini Antonio supplies several high-end supermarkets and we want to offer a constant, safe and sustainable product. As the use of chemicals is under