Pest and Control Methods of Eustoma
Known as the 'thornless rose' in the floral art world, Eustoma is widely loved for its elegant flower shape. However, many flower enthusiasts have found that this seemingly delicate flower is particularly prone to pest infestations during maintenance. This article will focus on common pests such as aphids and leaf-rolling moths, and provide detailed information on their harmful characteristics and scientific control measures.
Eustoma Aphid Control System
Recognition Features of Aphid Damage
This 2mm green insect has超强繁殖力, with one female aphid able to produce 100 million offspring in 3 months. They gather on the tender buds to suck sap, and the honeydew they secrete not only induces sooty mold, but also attracts ants to establish a 'pastoral symbiotic' relationship.
Comprehensive Aphid Control Plan
It is recommended to adopt a 'three-step control method': initially use yellow sticky traps for physical capture; when the pest population reaches 5 individuals per plant, spray neem-based biopesticides; in severe cases, alternate the use of imidacloprid and thiamethoxam, paying attention to spray the back of the leaf wrinkles. The addition of silicon fertilizer can enhance plant resistance.
Leaf-rolling Moth Control Strategies for Eustoma
Development Pattern of Leaf-rolling Moth Damage
This鳞翅目 pest is known for its characteristic of using 'rolled leaves as nests', with the larval stage completing 4 molts within the curled leaves. The damaged leaves show distinctive net-like membrane spots, and the adult's nocturnal activity can cause perforations in the petals, leading to a 50% or more reduction in the commercial value of cut flowers.
Key Points of Leaf-rolling Moth Control Technology
A 'sugar-vinegar solution + biological agent' combination plan is recommended: prepare the attractant solution in a ratio of sugar:alcohol:vinegar:water = 3:1:6:20, and hang it at a height of 15cm from the plants for optimal effect. Spray Bacillus thuringiensis (BT preparation) during the larval stage, and use chlorantraniliprole during the adult emergence stage, avoiding high-temperature periods for application.
Pest Prevention and Management System
Environmental Control Preventive Measures
Maintaining a day-night temperature difference of less than 8℃ and an air humidity of 60%-70% can effectively inhibit egg hatching. It is recommended to use a drip irrigation system to avoid waterlogging on the leaves. Monthly application of wood ash extract (1:50) to the roots can improve the soil microbial community.
Protection of Biodiversity
Plant mint, marigold, and other pest-repelling plants around the planting area to attract natural enemies such as ladybirds and green lacewings. Setting up one insect hotel per 100㎡ can increase the natural pest control capability by 30%. Regularly rotate green manure crops such as cosmos to interrupt the pest life cycle.
By adopting a strategy of 'prevention first, comprehensive control' and the coordinated application of physical, biological, and chemical control methods, it is entirely possible to keep the pest loss rate below 5%. It is recommended to create a 'Pest and Disease Monitoring Form' every month, recording pest density and control effects, and gradually establishing an individualized Eustoma maintenance system.