Pest Guide Weather Advice
Whether conditions in central and western Florida can be hot and humid, cool and dry, or rainy with sudden
downpours and this will directly affect pests and their activities. These conditions prompt pests to invade your
premises or building to seek three very basic needs – food, water and
shelter. Find out how our local weather is affecting your pest forecast this season, and then use
our tips to assist you in maintaining a pest free environment.
Forecast: More pests may invade your environment.
expect an increase in the number of pests you see during our rainy season, plus more invasions, as these larger
populations seek food. Specific pests you should watch for include: ants, outdoor cockroaches, spiders,
crickets, ladybugs, yellow jackets, hornets, mice and rats. Now here’s why:
moisture promotes pest reproduction and growth, so you have more insects! Ants, especially, reproduce in
greater numbers in wet, warm climates.
pests mean a greater need for more food sources. Insects will continue to search beyond their normal
habitats to find food.
may occur as pests relocate to drier ground.
Rainfall and Flooding
Pest Forecast: Ants and others retreat from flooded soil.
rainfall over a short period of time will flood the soil and cause insects, especially ants, to seek dry ground.
Some pests retreating from the unfavorable weather conditions will find shelter in the nearest location, which is
often your building or warehouse. Other facts to note:
can easily move an entire colony on short notice.
areas that may become new homes overnight for ants are wall voids and under foundations.
rain creates an abundance of ants, which increases the need for pest control services.
Forecast: Pests most likely will seek water in and around your building.
create additional pest growth, while lack of rain promotes pest invasions. When we enjoy a dry, cooler spring,
chances are pests may be fewer, but they will be relentless in their pursuit of moisture for survival. Dry
conditions affect pests in the following ways:
of moisture outside drives pests inside buildings to find water.
dry weather ants, earwigs, millipedes, pillbugs and sowbugs, crickets and spiders are the most common pests
to seek water indoors.
Millipedes have been known to leave leaf litter, mulch or a lawn and move in migrations of thousands when their
harborages dry out – inevitably invading buildings that stand in their way.
Pest Forecast: Fewer pests but more frequent visits.
are one benefit of a dryer spring and summer. Extended periods of dry weather or droughts will affect the food
supply also eliminating some insects. Here's what you can expect:
a reduced food supply, scorpions & certain spiders must venture beyond their normal habitats in search
of a food source.
may establish breeding sites and harborages in and around your building – in debris, bricks, rocks, firewood, etc.
Forecast: Warmth indoors attracts pests into your living spaces.
cooler temperatures outside, pests seek the warmth and shelter of your building. Some pests you are likely to
find invading your home to escape the cooler temperatures are box elder bugs, cluster flies, lady bugs, and
silverfish. Here’s more about these pests:
invaders, like overwintering pests, start moving indoors during late summer and early fall as the
pests like to use walls, voids and attics as their winter retreats.
isn’t any way to totally pest-proof your building, but you can seal as many cracks and holes on the outside
of your home as possible, especially on the south and west walls where the sun heats the home during the
late summer and fall. Also, you should install tight-fitting screens on all foundation and attic
Any short period of drought, extended rainfall or excessive heat or cold can force insects and other pests to
invade buildings seeking relief from unfavorable weather conditions. Like people, pests are affected by extreme
heat or lack of rain and will do what is necessary to survive. Understanding the cause-and-effect relationship of
weather and pests will help keep insects out of your home.