Nếu bạn nhìn thấy những con bọ rùa châu Á bò quanh trong nhà, có nhiều phương pháp đơn giản để xử lý chúng. Mặc dù chúng thường bị hiểu lầm là có hại, nhưng thực tế chúng hoàn toàn vô hại. Tuy nhiên, nếu bạn muốn loại bỏ những con bọ gây phiền toái này, chúng tôi sẽ hướng dẫn bạn cách thực hiện. Bài viết này sẽ cung cấp các bước kiểm soát sự xâm nhập, ngăn chặn chúng quay lại, đồng thời chia sẻ thông tin cơ bản về cách nhận biết bọ rùa châu Á và đảm bảo an toàn khi tiếp xúc với chúng.
Các bước
Kiểm soát tình trạng xâm nhiễm

Sử dụng máy hút bụi để xử lý một đàn bọ rùa. Đây là phương pháp hiệu quả nhất để đối phó với số lượng lớn bọ cánh cứng. Nếu bạn thấy một đàn bọ rùa xâm nhập vào nhà, hãy dùng máy hút bụi để hút chúng. Nếu có thể, hãy sử dụng máy hút bụi có bộ lọc HEPA để ngăn chúng bò ra ngoài. Sau khi hút xong, hãy thả chúng ra ngoài tự nhiên.
- Đây cũng là cách hiệu quả để bắt những con bọ ở những vị trí khó tiếp cận. Bọ rùa châu Á thường ẩn nấp ở những nơi như gầm thấp, gác mái hoặc sau tường thạch cao để giữ ấm.
- Bọ rùa không gây hại cho môi trường và không làm hỏng nhà cửa khi chúng vào nhà để trú đông. Nếu có thể, hãy thả chúng ra ngoài thay vì giết chúng.

Wrap the yarn around your fingers. Take the loose end of the yarn and loop it across your fingers. For a medium-sized yarn ball, wrap it around your index and middle fingers. If you prefer a larger ball, include your ring finger in the wrapping process.
Wind the yarn around your fingers. Avoid wrapping too tightly to prevent cutting off circulation. If your fingers turn blue or purple, the yarn is too tight. Additionally, overly tight loops will be difficult to remove later. The number of wraps depends on the size of the yarn ball you want:
- For 2 fingers: wrap 100-125 times.
- For 3 fingers: wrap 125-150 times.
Carefully slide the wrapped yarn bundle off your fingers and place it on top of the short yarn piece you cut earlier. Hold the bundle firmly to prevent the yarn from unraveling. Ensure the bundle is centered on the short yarn piece.
Tie the yarn tightly around the bundle. Pull both ends of the yarn toward you and tie a secure knot in the middle of the bundle. This step is crucial, as the ball may come apart if the knot is loose.
Flip the bundle over and tie a double knot. Pull both ends of the yarn toward you again and tie another knot. Repeat to create a tight double knot for extra security.
Trim the excess yarn ends, then cut through the loops at both ends of the yarn bundle. Ensure all loops are cut; otherwise, your final product won’t take the proper shape of a yarn ball.
Fluff the yarn ball. You can use your fingers to fluff it or gently roll the yarn ball between your palms. Don’t worry if a few strands come loose; this is completely normal.
Trim and tidy up the yarn ball. At this stage, the yarn ball is nearly complete, but it might look a bit uneven. You can refine its appearance by trimming any stray strands. Carefully rotate the ball and snip any longer strands to match the rest.
Using cardboard
Draw a circle on the cardboard by tracing around a cup. This will serve as the base for making the yarn ball. If you want to create a larger yarn ball, you can use a small bowl or even a CD or DVD to trace the circle.
Draw a smaller circle inside the one you just created. This inner circle should be 1.2 to 2.5 cm wide. The larger the outer circle, the larger the inner circle should be. However, avoid making the inner circle too big, as it will make tying the yarn ball difficult.
Cut out the circles using a craft knife. Start with the larger circle, then move to the smaller one. You’ll end up with a donut-shaped piece. If you’re young, ask an adult to assist with this step.
Cut a slot about 1 cm wide into the donut shape. The slot should run from the outer circle to the inner circle. This makes it easier to wrap the yarn around the donut shape.
Trace the donut shape and cut out an identical second piece. Align the two pieces, ensuring their slots match perfectly. You’ll keep these two pieces together until the final step.
Start wrapping the yarn around the donut shape. The easiest way is to begin at one edge of the slot, wrap the yarn tightly around the donut, and finish at the other edge.
Continue wrapping the yarn around the donut shape until the center hole is completely filled. Try to wrap as evenly as possible without pulling so tight that the cardboard twists. If desired, switch to different colored yarns to make the ball more visually appealing.
Cut the yarn strands. Trim the excess yarn first, then slide the scissors between the yarn loops and the cardboard. Move the scissors toward the outer edge of the donut shape and start cutting through the loops. Keep the yarn bundle intact to prevent the strands from unraveling.
Cut a long piece of yarn and tie it around the middle of the yarn bundle. Separate the two cardboard pieces slightly to thread the yarn between them. Tie the ends tightly, then wrap the yarn in the opposite direction and secure with a double knot.
- You can trim the excess yarn or tie it into a loop for hanging.
Carefully remove the two cardboard pieces from the yarn ball. If needed, you can tear them out for easier removal, but note that the cardboard pieces won’t be reusable.
Fluff the yarn ball. Use your fingers or roll it between your palms. Don’t worry if a few strands come loose.
Neaten and shape the yarn ball. Your yarn ball might still have some uneven strands sticking out, especially after fluffing. Rotate the ball and trim any longer strands to make it more uniform.
Using a fork
Place the end of the yarn across the tines of the fork. A plastic fork works, but a metal one is less likely to bend or break. Since you’re working with a small tool, consider using thinner yarn instead of bulky yarn.
Wrap the yarn around the fork tines about 90 times, then cut the yarn. Avoid wrapping too tightly to prevent bending the fork. If the fork bends, it could damage the tool and make the yarn ball uneven, as well as complicate tying the loops.
Cut a piece of yarn about 30 cm long. This will be used to tie the yarn ball. If preferred, thread the yarn through a yarn needle to make tying easier.
Wrap the cut yarn around the loops on the fork. First, thread the yarn through the gap in the middle of the fork, just below the loops. Then, wrap the yarn over the loops and back under, pulling as tight as possible.
Tie the yarn into a secure double knot. You can trim the excess yarn or tie it into a loop for hanging the yarn ball.
Slide the loops off the fork, then cut through the loops at both ends. Gently fluff the yarn ball. Use your fingers or roll it between your palms. Don’t worry if a few strands come loose.
Shape the yarn ball evenly. By now, the yarn ball has taken shape, but it might still look a bit messy. If it doesn’t look neat, use scissors to trim any uneven strands for a fuller, rounder appearance. This step also helps the yarn ball look denser.
Tips
- Yarn balls can make fantastic toys for cats! Just keep an eye on your cat to ensure the yarn ball doesn’t unravel.
- When knitting hats or other items that require yarn ball decorations, remember to save enough yarn for the balls.
- Using multi-colored yarn will give you vibrant, stylish yarn balls!
- If you don’t have multi-colored yarn, you can cut the yarn and switch colors as you go. You can also wrap two or more colors simultaneously.
- Try using textured or metallic yarn for a unique yarn ball look.
- Thicker yarn tends to create more visually appealing yarn balls.
Warnings
- When using your fingers to make yarn balls, be careful not to wrap too tightly, as it could restrict blood circulation.
What You’ll Need
Using your fingers
- Yarn
- Scissors
Using cardboard
- Cardboard
- Pencil or pen
- Cup, small bowl, or CD/DVD
- Craft knife
- Yarn
- Scissors
Using a fork
- Metal fork
- Yarn
- Scissors
