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Canna leaf roller refers to two different Lepidoptera species that are pests of cultivated cannas. Caterpillars of the Brazilian skipper butterfly ( Calpodes ethlius ), also known as the larger canna leaf roller, cut the leaves and roll them over to live inside while pupating and eating the leaf. [ 1 ]
Puccinia thaliae is the causal agent of canna rust, a fungal disease of Canna. Symptoms include yellow to tan spots on the plant's leaves and stems. Initial disease symptoms will result in scattered sori (clustered sporangia), eventually covering the entirety of the leaf with coalescing postulates.
The canna leaf roller butterfly (Calpodes ethlius) has been seen on Canna plants in the US. [22] It is a caterpillar known as the worst pest for this plant and primarily found in the Southern United States. This pest causes damages by laying its eggs in the bud of developing stalks.
Leafhoppers mainly are herbivores, but some are known to eat smaller insects, such as aphids, on occasion. A few species are known to be mud-puddling, but as it seems, females rarely engage in such behavior. Many species are also known to opportunistically pierce the human skin and draw blood but the function of such behaviour is unclear.
Cockchafer feeds on deciduous plant and fruit tree leaves, including oaks, maple, sweet chestnut, beech, plum, and walnut trees. The feeding behaviour of larvae can cause severe damage to the plants. They feed on both the small roots of field plants such as grain, grass, tree, beet roots and the large part of crop rootlets.
Robber fly feeding on wasp Fried saturniid caterpillars being served on bread for human consumption in Burkina Faso in 2015. Entomophagy (/ ˌ ɛ n t ə ˈ m ɒ f ə dʒ i /, from Greek ἔντομον éntomon, 'insect', and φαγεῖν phagein, 'to eat') is the practice of eating insects.
A pair of mating D. femorata in the Hudson Highlands region of New York. The common walkingstick is a slender, elongated insect that camouflages itself by resembling a twig. . The sexes differ, with the male usually being brown and about 75 mm (3 in) in length while the female is greenish-brown, and rather larger at 95 mm (3.7 i
Phymata americana feed on a wide variety of prey, most often including small bees, moths, and flies. [8] [9] As their common name suggests, P. americana are sit-and-wait ambush predators, resting on flower heads where they grab visiting insects with large raptorial foreleg weapons.