How does Derbac-M work? Derbac-M liquid contains the active ingredient malathion, which is an organophosphorous insecticide that kills parasites such as head lice, pubic lice and scabies mites. Malathion works by blocking the action of an enzyme in the parasite called cholinesterase.

Indications and dose

1. For Child. Apply once weekly for 2 doses, rub preparation into dry hair and scalp, allow to dry naturally, remove by washing after 12 hours.
2. For Adult. Apply once weekly for 2 doses, rub preparation into dry hair and scalp, allow to dry naturally, remove by washing after 12 hours.

Common side effects of malathion include: stinging sensation. contact hypersensitivity reaction. chemical burns, including second-degre burns.

Step 1: Treat the person(s) infested with head lice: Carefully apply the malathion lotion to dry hair until the scalp and hair are wet and thoroughly coated, especially behind the ears and on the back of the head and neck. The manufacturer recommends leaving the medication on the hair, uncovered, for 8–12 hours.

Leave malathion on the hair and scalp for 8-12 hours.

Malathion is a man-made organophosphate insecticide that is commonly used to control mosquitoes and a variety of insects that attack fruits, vegetables, landscaping plants, and shrubs.

The International Agency for Research on Cancer (IARC) has determined that malathion is unclassifiable as to carcinogenicity to humans. To protect the public from the harmful effects of toxic chemicals and to find ways to treat people who have been harmed, scientists use many tests.

Organophosphate-type insecticides, such as Guthion and Malathion, are very susceptible to wash-off from rain because they do not readily penetrate cuticle layers on plant tissues.

The best time to use a pesticide is when the soil is moderately dry and no rain is expected, on a cloudy day when temperatures are moderate. Never apply pesticide when there is wind to prevent the chemical from drifting to non-target areas.

Apply fungicides before a rain if possible. Water is necessary for most fungal spores to infect foliage and for the splash dispersal of spores. Therefore apply fungicides before a rain if it appears that the fungicide will have a chance to dry before the rain. Some fungicides list the rain fastness period on the label.

While it is better to have protectant fungicide applications on before a rain or heavy dew event which could represent an infection period, avoid putting on protectant fungicides within several hours before a rainstorm as you may lose much of it to wash-off.

Late June to early August is the best time to apply a preventive insecticide. Several insecticides are available to commercial applicators for prevention of white grubs.

Treating in late summer or early fall is ideal, as that is when the smaller, young grubs are most susceptible to nematodes. There is also usually a short window for application in early spring before the grubs get too big and pupate, but that is a narrower window and can be difficult to time properly.

A customary bi-monthly service generally covers bugs like spiders, ants, crickets, silverfish, earwigs, and wasps. Any other insect may be measured a specialty pest. A bi-monthly service typically will work for specialty pests as well. Usually, pesticides are helpful up to two months after distribution in Cache Valley.

DL: Sprays can only kill mosquitos that are in your yard at the time of spraying. If the treatments target standing water, beneficial insects that eat mosquitos, like dragonfly larvae, will also be killed.

Apply to baseboards, corners, storage areas, closets, around water pipes, doors and windows, in attics and eaves, behind and under refrigerators, cabinets, sinks, furnaces, stoves, under shelves, drawers and similar areas.

Best time of year for pest control August – December

• Step 1 Internal perimeter spray treatment.
• Pros- This will eliminate 50 – 80% of the pest control activity in the home and effect the pests quickly usually within 24 hours.

According to HomeGuide.com the average cost for a pest control visit from a professional contractor was $170 as of January 2018, with a general range of $100 to $270. Meanwhile, HomeAdvisor.com says the average range for a single visit $108 to $260, with the national average at $173.

Answer: To treat for roaches we recommend spraying once every 21 days with suspend and also using a roach bait like Maxforce FC magnum. Apply the bait once a week.