THRIPS OFF- A TERMINATOR AGAINST THRIPS
Thrips are an order of the Thysanoptera. There are more than 6,000 known species. Most are harmless, some are predators, and fewer than 20 species can cause problems in agriculture and horticulture. Thrips are small insects (0.5-14 mm), with the largest species found in the tropics. In temperate regions they are not larger than 2.5 mm. All thrips species that cause damage in green-houses belong to the family Thripidae.
Thrips have rasping and sucking mouth parts, during feeding, they first rasp the cells and then suck up plant sap. Therefore, the direct damage caused by thrips includes flecking or silver-grey speckles on the leaves, fruits and flowers.
Fig 1-3. Onion thrip, western flower thrip, tomato thrip
Commonly, thrips feed on young plant parts, that are still growing, it causes the discoloration, distortion, premature drying, and shedding of leaves, flowers, and buds. Additional direct damages caused by thrips may include small fruits and fruit drop, infested fruits are discolored, deformed, and scabby. Also, thrips can cause indirect damages, they act as a vector to various plant viruses. It is worth noting that when deformation symptoms show up, the pest may no longer be present.
Fig 4. Damages on mango
Fig 5. Damages on melon
Fig 6. Damages on Onion thrips
THE LIFE CYCLE OF THRIPS
Under ideal conditions the life cycle is completed in 24-35 days and thrips in glasshouses may continue breeding throughout the year. Thrips on garden plants usually have two or three generations a year but may have more during hot summers. Outdoor thrips overwinter as adults or nymphs, either in the soil or concealed on the host plant.
The life cycle of thrips consists of the egg stage, followed by two larval stages, two pupal stages, and finally the adult stage. A typical thrips will lay up to 100 eggs at a rate of one or two per day. These are often deposited on the younger leaves or in flower buds of host plants. Eggs hatch into nymphs which, like the adult insects, feed by sucking sap. The pupal stages (prepupa and pupa) are resting stages and do not feed, and may be found on the plant, in the soil, and under leaf litter. Thrips populations generally peak during spring and early summer.
How can we control the thrips more effectively?
Thrips off is an insecticide developed by King Qunenson for excellent control the stages of thrips including eggs, larvae, and adults.
1. All Life Stages Control
Thrips off can effectively control the adults, and more importantly it can reduce number of eggs and the production of nonviable eggs.
2. Excellent Systemic Action
Thrips off can kill the eggs and larvae, even when they hide on the back of the leaf or flowers.
3. Long-lasting Protection
Thrips off can provide long-lasting effect, so it can keep plant leaf healthy, and maintain the color and integrity of flowers, the attractive shape and joyful taste of the fruits.
4. Safe to beneficial insects
Thrips off has low toxicity to fish and honey bee, so it is convenient to use and friendly to the environment.
Also, Thrips off is not only effective to control thrips, but also has a good control effect on other pests that coexist with thrips, like thrips, tuta absoluta, whiteflies, armyworm, mites, etc.
Since 2003, King Quenson has been thriving to introduce the latest technologies to agricultural industries and farmers to achieve mutual development and prosperity. With years of dedication and rich experience, King Quenson devotes more than 18 years to crop protection and offers solutions.
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Tel: 86-755-86612760, 86-755-86612793
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