fifth instars bore into the central yellow leaves of the leek and produce the most severe damage. First instar larvae are ca 1 mm long, but mature…
aphids and scale insects, they belong to the division Sternorrhyncha. The most common species are the greenhouse whitefly , Trialeurodes vaporariorum…
beetle ( Crioceris asparagi ) is a major, host-specific pest of asparagus in most asparagus producing regions of the world. Life cycle and appearance…
visible. On the leaves, round and extending lesions may occur. In cucumber, the most important symptom is internal fruit rot, which can only be…
of these conidia. There is no known sexual stage. Ascochyta fungi develop most rapidly at temperatures below 20 °C and the spores require water for…
present wherever its cruciferous hosts exist and it is considered to be the most universally distributed lepidopteran species. It is highly migratory…
of humans and that we use that difference to provide our clients with the most effective pollination solutions? See, hear, and discover. Visit our…
protected under the shield until they hatch. The emerging crawlers settle mostly along the main veins on the lower sides of mature leaves. Many young…
Conidia require a minimum of 5 °C for germination. Primary infection is mostly by ascospores or conidia on the oldest leaves, but seed transmission is
number of freesias. Lily : Lilium is a genus of herbaceous flowering plants. Most lilies originate from temperate areas in the northern hemisphere,…
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