Cottony cushion scale

and subtropical countries of the world. It is also periodically discovered in greenhouses in temperate regions, but is not generally a pest in these situations [...] Cottony cushion scale is a particular pest of citrus, Acacia spp ., Casuarina spp . and Pittosporum spp ., but it can damage many types of fruit and forest [...] first ever example of successful classical biological control. The cottony cushion scale has subsequently spread widely through most of the tropical and

Blackberry

The blackberry is an edible fruit that originates from a wide range of species belonging to the genus Rubus that is part of the family of Rosaceae , but [...] subgenera. The blackberry is actually not a berry botanically speaking. It is a so-called aggregate fruit that consists of small kernels.

Boisduval scale

species of Diaspi s are very similar in their appearance and damage symptoms. Here, the Boisduval scale is described in more detail, as it is the most [...] climates. It is very polyphagous and can be a pest of orchids, palms, pineapples, bananas and many other plants. Damage symptoms The first sign of Boisduval [...] Boisduval scale is the presence of the scales on upper and lower leaf surfaces, fruits, and stems of plants. On palms, Boisduval scales are normally found on the

Municipality Venray: biological control of oak processionary caterpillars

In the Municipality of Venray a third of the tree stock in the area, some 11,000 trees, is oak. ‘We’ve been using Koppert’s nematode product Entonem as [...] outlying areas where there might be protected species of butterfly and moth. The major benefit of Entonem is that nematodes kill fewer other caterpillars , which [...] have treated have been 90% cleared. What is interesting is that avenues running east to west are typically free of oak processionary caterpillar, while those

Aphelinus abdominalis

Aphelinus abdominalis is a parasitic wasp for the biological control of various aphid species. The parasitic wasp Aphelinus abdominalis is used for the biological [...] parasitized. The control of the aphids is due to host feeding and parasitization in roughly equal measure. Life cycle and appearance of Aphelinus abdominalis [...] parasitic wasp is available in a bottle ( Aphilin ). Release mummies near infested plants, because Aphelinus abdominalis is not very mobile Spread material

Chrysanthemum

called mum or chrysanth, is a flowering plant that belongs to the genus Chrysanthemum of the family of Asteraceae. The plant is originally from Asia and [...] consists of many hybrids and an extensive range of cultivars that are produced for commercial, horticultural purposes. Traditionally, yellow is the main [...] main colour of this flowering plant. Nowadays, a wide range of other colours is available such as white, purple and red.

Cauliflower

vegetables, belongs to the species Brassica oleracea of the genus Brassica which is part of the family of Brassicaceae . Broccoli, Brussels sprouts, cabbage [...] looks like broccoli and consists of white, flowering meristem. Only the cauliflower head is eaten, this white flowering part is at times referred to as ‘curd’ [...] belong to various cultivars, but are all members of the species Brassica oleracea. The cauliflower plant is an annual plant that reproduced by seed. The

Tomato looper

to the family of Noctuidae . It is a tropical and subtropical species originating in the Mediterranean and northern Africa. The larva is highly polyphagous [...] countries and is now one of the most frequently found pest species in greenhouses. Damage symptoms The tomato looper (Chrysodeixis chalcites) is primarily [...] The cocoon is usually attached to the underside of leaves within folded edges, on random objects and on tomato fruit, often in a bunch of ripening tomatoes

Apple

ly there exists also a wide range of bi- or tri-colored cultivars. The skin of the apple is protected by a layer of epicuticular wax. Apples usually have [...] all over the world. It is the most common cultivated species of the genus Malus . Currently, more than 7,500 known varieties of apples are being cultivated [...] thousands of years, before European colonists introduced the tree to North America. The deciduous apple tree belongs to the rose family and is now cultivated

Verticillium wilt

causes verticillium wilt and early dying of potato. Damage symptoms Verticillium species mostly cause wilting of plants. The wilting starts at the lower [...] The symptoms may occur only in parts of the plant. Cutting the stalk horizontally reveals a slight discolouration of the vessels, brown or greenish, but [...] fungus infects the roots of plants, directly or through wounds caused by for example nematodes. The fungus then grows into the vessels of the plant and produces