Use Cycle
Replace sticky tape every 1-3 months, depending on pest density and the condition of the adhesive layer.
If more than 80% of the sticky tape surface is covered by pests or the adhesive layer has lost its stickiness, replace it immediately.
Data Monitoring
Regularly count the types and numbers of pests on sticky tapes and analyze patterns of pest occurrence.
Combined with other monitoring methods (such as insect traps and sex attractants) to develop a comprehensive prevention and control strategy.
Coordination with Other Measures
Combined with insect nets, insecticidal lamps, biological control methods, and other measures, to form a multi-layered prevention and control system.
Avoid using high-powered wind equipment near sticky tapes to prevent pests from escaping or the tape from falling off.
IV. Common Problems and Solutions
How do I determine if sticky tapes need to be replaced?
Determining whether a sticky tape needs replacement requires considering three key criteria: appearance, attractant effectiveness, and environmental factors. Specific criteria and recommended procedures are provided below:
I. Core Criteria
1. Physical Condition of the Adhesive Layer
Adhesive Layer Coverage: When the surface of a sticky tape is covered with pests, dust, plant debris, and other debris exceeding 80%, the effective contact area of the adhesive layer is significantly reduced, and insect attractant efficiency declines.
Example: A sticky tape measuring 1 meter long and 5 centimeters wide should be replaced when it covers an area of 400 square centimeters (equivalent to approximately 160 aphids or 80 whiteflies).
Adhesive Layer: Lightly touch the adhesive surface with a clean wooden stick or finger. If the adhesive is not sticky, stringy, or flaking, it indicates that the adhesive has failed.
Adhesive Layer Uniformity: If the adhesive layer shows signs of localized hardening, bubbles, cracking, or flaking, it should be replaced immediately.
2. Pest Trapping Efficiency
Insect Capture Per Unit Time
After initial installation, count the number of pests on the sticky tape daily for the first three days to calculate the average daily trapping rate.
If the average daily trapping rate decreases by ≥50% compared to the initial rate during subsequent monitoring, excluding factors such as a decrease in pest population density, the tape should be replaced.
Changes in Pest Species
If a large number of non-target pests (such as ants and spiders) appear on the sticky tape, or if the percentage of target pests (such as aphids and whiteflies) falls below 30%, the trapping efficiency may be reduced due to a loss of selectivity in the adhesive layer.
3. Environmental Impact Assessment
Greenhouse Temperature and Humidity
Sustained high temperatures (≥40°C) or high humidity (≥85% RH) accelerate adhesive aging, necessitating a shorter replacement cycle.
Example: In high temperature and humidity in summer, the lifespan of a sticky tape may be reduced to 1 month, while in spring and autumn it can last up to 2-3 months.
Physical Damage
If the sticky tape becomes damaged, wrinkled, or detached due to wind, crop friction, or human contact, etc.
II. Auxiliary Identification Methods
1. Regular Sampling Monitoring
Steps
Randomly select 3-5 sticky tapes for evaluation at a fixed time each week (e.g., Monday morning).
Record the coverage area, adhesive layer condition, and pest species/number of each sticky tape.
Calculate the average insect attraction efficiency. If two consecutive monitoring results fall below the threshold, the tape must be completely replaced.
Example Table
2. Adhesive Layer Lifespan Test
Laboratory Simulation
Place sticky tape samples in a 40°C, 85% RH environment and regularly test the adhesive layer (e.g., using a tensile tester to test peel strength).
When the peel strength falls below 50% of the initial value, the adhesive layer is considered failed.
Field Comparison
Set up a comparison of new and old sticky tapes in the same greenhouse. If the new tape attracts more than three times the insects of the old tape, the old tape should be replaced.
III. Replacement Recommendations in Different Scenarios
IV. Key Points for Replacement
Safety Precautions
Wear gloves to avoid contact between the adhesive layer and skin; discarded sticky tapes must be sealed to prevent pests from escaping.
Cleaning
When removing residual adhesive or pests, gently wipe with warm water and a neutral detergent to avoid damaging the hanging structure.
Data Recording
Record the replacement time, location, type of insect attractants, and number of old tapes to provide a reference for subsequent prevention and control measures.
V. Summary
Replacement of sticky tapes should be based on data and results, avoiding blind replacement or overuse. The following principles are recommended:
“Double 80% Principle”: Immediately replace when adhesive coverage exceeds 80% or when the amount of insects attracted decreases by more than 80%.
“Three-in-One Principle”: Dynamically adjust the replacement cycle based on temperature and humidity, insect infestation monitoring, and the crop growth cycle.
“Environmental Priority Principle”: Prioritize biodegradable materials to reduce agricultural waste pollution.
