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Fungi that attack aphids include Neozygites fresenii, Entomophthora, Beauveria bassiana, Metarhizium anisopliae, and entomopathogenic fungi such as Lecanicillium lecanii. Aphids brush against the microscopic spores. These stick to the aphid, germinate, and penetrate the aphid's skin. The fungus grows in the aphid's hemolymph. After about three ...
repels aphids, Colorado potato beetle, and spider mites [3] Cosmos: repel the corn earworm: Crown imperial: repel rabbits, mice, moles, voles and ground squirrels [6] Dahlias: repel nematodes [2] Dill: repels aphids, squash bugs, spider mites, [2] the cabbage looper, and the Small White [3] Epazote: repels spider mites, [7] thrips, aphids, and ...
Green peach aphid, a pest in its own right and a vector of plant viruses, killed by the fungus Pandora neoaphidis (Zygomycota: Entomophthorales) Scale bar = 0.3 mm. Entomopathogenic fungi, which cause disease in insects, include at least 14 species that attack aphids. [77]
An aphid infestation can ruin a garden. Learn what causes aphids and how to identify, kill, and control them naturally for healthy plants with no aphid holes.
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Significant pests include the cottony cushion scale, a pest of citrus fruit trees, [81] the green peach aphid and other aphids which attack crops worldwide and transmit diseases, [82] and jumping plant lice which can be plant-specific and transmit diseases, as with the Asian citrus psyllid which transmits citrus greening disease.
[73] [74] For example, when a host plant is attacked by an aphid, the plant signals surrounding connected plants of its condition. Both the host plant and those connected to it release volatile organic compounds that repel aphids and attract parasitoid wasps, predators of aphids. [73] This assists the mycorrhizal fungi by conserving its food ...
Aphids do best when amino acids are actively translocated in the phloem. In spring, the leaves grow and import amino acids via the phloem; in summer leaves are mature and export mainly sugars. In autumn, the leaves senesce and export amino acids and other nutrients. Thus on trees the leaves are most suitable for aphids in spring and autumn.