Japanese beetles are not nocturnal; they are in fact diurnal. Diurnal is a word used less common then nocturnal and it means the exact opposite. Japanese beetles are generally only active during the day time and at night they are largely dormant and sleeping. During the day is when they […]
Are Japanese Beetle Traps Effective?
Generally speaking, no. The conventional Japanese beetle bag trap is not your best choice for controlling the insects. Let me explain why. Yes, the traps are great at luring Japanese beetles and capturing them in their cavernous receptacle, but having these traps in your garden actually does more harm than […]
How Are Japanese Beetles Harmful?
Japanese beetles can be very destructive because during the short Japanese beetle season, because they devour and kill much vegetation. They are a threat to gardeners and farmers everywhere because of their voracious appetite. Japanese beetles come out in force in early summer and they have a tendency to swarm […]
Natural Predators to Japanese Beetles?
So, what types of animals eat Japanese beetles? Most commonly the Japanese beetle becomes prey to various species of birds and flying insects, such as the wasp. Very many kinds of birds will feed on beetles such as the starling, sparrows, and bluejays. Rodents may also eat Japanese beetles, such […]
Do Japanese Beetles Swarm?
It is rare that you will find only one or two Japanese beetles together because they are very drawn to each other to form a swarm. That’s why they call it an infestation. Japanese beetles find each other by chemical indicators, and they have evolved this tendency because it helps […]
Can Japanese Beetles Kill Trees?
Japanese beetles are famous for killing trees, flowers, and other plants by consuming the fleshy part of their leaves in a process called skeletonizing (see the image to the left). Trees rely on their leaves for respiration and for obtaining energy by the process of photosynthesis. A swarm of Japanese […]
What Attracts Japanese Beetles?
Japanese beetles are most reliant upon their sense of smell to make their way in the world. Their eyesight is not as sharp, so they rely on smell to find food, a mate, or anything else they need. You may have noticed that the modern beetle bag traps use a […]
Neem Oil for Japanese Beetle Control?
Neem oil is a great natural repellent for most insects, but is it effective at keeping Japanese beetles out of your garden? The answer is both yes and no. Japanese beetles are averse to the smell of neem oil. If you dilute neem oil in water and spray it on […]
