Sentences with phrase «when insects»

Arborists recommend pruning in late fall or winter when insects are dormant and sap isn't running.

[Response: There will always be a climatic component when insects and trees are involved, but that doesn't necessarily mean it's well understood, nor that it's the dominant force in a given irruption.

When these insects are examined under a microscope or magnifying glass, the differences between them become readily apparent.

Stings can occur anytime, though they are obviously more common during warmer months when insects are more active.

These contagious diseases can spread easily from pet to pet through physical contact, contaminated surfaces, or when insects carrying the disease bite pets.

Avoiding outdoor activities during times of day when insects are most active helps lower exposure.

Environmental Entomology: Our entomology assignment help writers suggest that this branch studies what happens when insects interact with the physical, chemical, and biological aspects of their environment.

When insects eat neem - coated foliage, the liminoids disrupt normal hormone production and processing, causing a loss of appetite in some insects and interfering with normal reproduction, maturation, and molting patterns in others (2).

«Dodder: A parasite involved in the plant alarm system: Host plants communicate warning signals through a parasite network, when insects attack.»

When insects from such a species carry two copies of a resistance gene, they can survive high doses of Bt.

When insects visit flowers to lap up a meal, they contaminate the nectar with bacteria and yeast.

So when insects land on the mesh, the angled ridge of the trap leads them up and over the edge into a jar of alcohol at the top.

When the insects have located a dense patch of flowers or a source of water, they skitter across the honeycomb in their hive in a pattern related to the direction of and the distance to the site.

The malaria parasite, Plasmodium falciparum, reproduces in the human liver before jumping to mosquitoes when the insects feed on human blood.

The very complex olfactory system of modern insects is therefore not an adaptation to a terrestrial environment when ancient insects migrated from water to land, but rather an adaptation that appeared when insects developed the ability to fly.

When these insects go into swarm mode, they don't just get super social, they also completely change physically, becoming stronger, darker and much more mobile, says study co-author Swidbert Ott, a research fellow at Cambridge.

They observed that plants flourished in the absence of insects when insects were kept down by predation.

«It felt like stepping back into the Jurassic age, when insects ruled the world,» Carlile said.

When the insects reach a critical mass, they start gathering together, first forming carpets of immature nymphs and then winged throngs that can span hundreds of square miles.

Such assisted reproduction was thought to have arisen about 140 million years ago, when insects began collecting and transferring pollen between flowering plants.

Seeds, nuts, fruit, and grain can be larger and more plentiful when insects or other animals transfer pollen between plants, in contrast to when plants pollinate themselves, a process called selfing.

RED - LIGHT DISTRICT Levels of a brain reward compound increased in male fruit flies genetically engineered to ejaculate when exposed to red light when the insects were bathed in the rosy hue.

«We wanted to pull all the data together on when these insects are active to get a better picture of what's happening.

One reaction, regulated by jasmonic acid, comes into play when insects chew on the plant's leaves, stems or fruit, damaging the plant and leaving insect saliva.

When an insect bites or stings you in the garden, what do you do?

And a stubborn and long - suffering minority of purists has meanwhile been borrowing from the drifters to prove that Steelhead, which have long been taken on flies in the warm, summer - run streams, can also be taken with them in the winter when they stay deep in the chill current and when insect life is nonexistent.

The other is turned on when an insect regurgitates stomach contents containing microbes onto the plant triggering a response by the plant to microbial pathogens that uses salicylic acid.

In the middle of summer, when insect numbers peak, the decline was even more severe at 82 percent.

The period when the insect lived, the Eocene, was one of the warmest in history, and lush tropical or subtropical rain forest surrounded the lake; the two - and - a-half-inch-long adult male most likely sat and snacked upon the leaves of plants from the laurel or the pea family.

When an insect happens into the plant's trap zone, it triggers minuscule hairs that send a tiny electrical signal, causing small amounts of water to shift.

Silk strands in a spider's web, Fossey says, elongate when an insect is caught, turning the prey's momentum into heat.

When an insect emits its unique sexual attractant, potential suitors can come a-courting from hundreds of yards away.

When an insect wing flaps, its front edge goes down and forward and then up and backward, tracing a flattened figure eight.

Many butterflies have evolved strategies to avoid attracting attention, but there is one circumstance when an insect wants to be noticed: during mating season.

But when the insect flees the scene, is it doing so because it is actually afraid?

And because an insect's exoskeleton has a waxy surface that acts as an electrical insulator, that charge isn't easily dissipated, even when the insect lands on objects, says Randolf Menzel, a neurobiologist at the Free University of Berlin in Germany.

But since the lizards only forage when it's warm, the flowers are opened when insect pollinators are likely to be about.

Then, when an insect starts feeding, a plant enzyme removes the sugar to deploy the active toxin.

Perfect... Except when insect populations develop resistance to the toxin!

This sort of fossilization occurred when the insect was enveloped in the liquid sap from a tree.

When the insect bites another dog, some of the baby heartworms are injected under the skin.

Not exact matches

When many think of blogging, they often imagine something along the lines of a soccer mom chatting about her son's strange insect collection; however, blogging can be a great way to promote any new business.

Insects are even more efficient when it comes to water consumption, and they produce far fewer greenhouse gas emissions than livestock.

When Paul Reiter, an expert on insect - borne diseases at the Pasteur Institute, begged to differ - pointing out that malaria ¹ s range was shrinking and was limited by factors other than temperature - he had an uphill struggle.

Well it is true that some people seek sorcerers to implement Jinn that are satanic demons into mankind or his house or his business to finish him or make his life miserable or to stop flow of his business income... In such case it is either you are religious enough and say your prayers often then it becomes hard for this to harm you or otherwise you need to find some one who practice exorcism to remove this evil... But many are just pretending to be good at it and help you not but squeeze money out of you with tales and stories... There is another type of possessions and that is not through a sorcerer but directly by coincidence what man is at his weakest moments and those weakest moments for a possessions are when you come through a great fear or when cry or laugh loudly in hysteria, or during a certain moment of mating... or even when sneezing loudly... That's why there are prayers to be said on daily basis to guard you from such things and specially if passing haunted places such as deserted houses but most evil ones are residents of public toilets and market places... Some of them even would claim that you have made a wrong action by which you have killed a dear one to them and for that they have possessed you and that is mostly night time such as throwing a cigaret butt to a dark place or stepping killing an insect or even an animal at night which could have been one of them or possessed by one of them... So this is true thing happening to many who suffer unexplainable illnesses or sufferings which could look like mental illness that comes and goes as pleased...

When working by candlelight on a summer night, one would rather keep the windows closed and breath stuffy air than see insect after insect fall on the table with wings that are singed.

A California walking stick insect that has evolved to produce individuals with two distinct appearances — an all - green form that camouflages well with broader leaves and a form with a white stripe running down its back that blends better with needle - like leaves — can markedly affect its broader ecological community when the appearance of the bug is mismatched with the plant it's living on.

Perhaps when you were a child you poked a few holes in the lid of a mayonnaise jar and collected insects for observation.

It is a sense - deception, as when a swarm of insects at a distance seem to the eye like one body; a sense - deception, as when the noise of the many at a distance seems to the ear like a single voice.

When we compare the higher primates with the insects, this continuity is very great indeed.