Coriander is a herbaceous plant commonly affected by several pests, including mites and aphids. Here's the information you requested:
1. Mites:
- Scientific name: Tetranychus urticae (commonly known as the two-spotted spider mite)
- Family: Tetranychidae
- Order: Trombidiformes
- Damaging stage: Active feeding stage (nymphs and adults)
- Nature of damage: Feeding by mites results in stippling, chlorosis, and bronzing of leaves. Severe infestations can cause defoliation and reduced plant vigor.
- Oviposition: Mites lay eggs on the undersides of leaves.
- Pupation site: Mites do not have a pupal stage. They molt and develop through nymphal stages.
- Management: Cultural practices such as proper sanitation, removal of infested leaves, and maintaining adequate plant vigor can help manage mite infestations. Insecticidal soaps, horticultural oils, and selective miticides can be used if necessary.
2. Aphids:
- Scientific name: Aphis spp. (aphids are a large group of small sap-sucking insects)
- Family: Aphididae
- Order: Hemiptera
- Damaging stage: Active feeding stage (nymphs and adults)
- Nature of damage: Aphids extract plant sap, leading to distorted, curled, and yellowed leaves. They also excrete honeydew, which promotes the growth of sooty mold and attracts ants.
- Oviposition: Aphids give birth to live nymphs (viviparous reproduction) without laying eggs.
- Pupation site: Aphids do not have a pupal stage.
- Management: Natural predators such as ladybugs and lacewings can help control aphid populations. Additionally, insecticidal soaps, horticultural oils, and botanical insecticides can be used to manage aphid infestations if necessary.
