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Excess rainfall during spring and summer can significantly increase pest pressure in nurseries, greenhouses, and landscapes. Warm temperatures combined with high humidity and prolonged moisture create favorable conditions for rapid pest development, survival, and spread. Soft-bodied insects such as aphids, whiteflies, thrips, and mites often become more active during wet weather periods. Excess moisture promotes lush plant growth and tender foliage, which are highly attractive to many pests. Standing water and saturated growing media can also encourage European pepper moth, fungus gnats and shore flies, particularly in greenhouse production systems. Wet conditions can make pest management more challenging. Rain may reduce the effectiveness of contact insecticides by washing away spray residues, often requiring repeated applications. Prolonged wet weather can also limit access to production areas, making routine scouting and timely pesticide applications difficult. High humidity and dense plant canopies further complicate early pest detection. Many pests, including thrips and mites, remain hidden within flowers, buds, or on the undersides of leaves, allowing populations to build unnoticed. In addition, storm events and strong winds may contribute to the movement and spread of invasive pests into new production areas. Excess rainfall may also disrupt beneficial insect activity. Natural enemies such as predators and parasitoids are often less active during prolonged storms and humid conditions, reducing natural pest suppression and allowing pest populations to increase rapidly once environmental conditions improve. Implementing proactive integrated pest management (IPM) practices is essential during periods of excessive rainfall. Regular scouting and monitoring with sticky traps can help detect pest populations early. Improving drainage, increasing air circulation, maintaining proper sanitation, avoiding overwatering, and removing heavily infested plant material can reduce favorable conditions for pests. Rotating insecticides with different modes of action and conserving beneficial insects are also important strategies for long-term pest management and resistance prevention. As weather patterns continue to become increasingly unpredictable, adopting management practices and maintaining consistent monitoring programs will remain  Rafia Khan, Ph. D.
Assistant Professor and Extension Specialist Texas A&M AgriLife Research and Extension Center, Overton, TX
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On May 15, 2026, TNLA met with San Antonio Water System (SAWS) to discuss a new pilot initiative called the WaterSaver Pro Program for large residential properties. This program is designed to recognize landscape and irrigation practices that demonstrate long-term water savings, efficient irrigation use, and landscape resilience. Program Overview: According to SAWS, WaterSaver establishes both minimum and enhanced “Pro” standards for the design, installation, and retrofit of irrigation and landscape systems on residential properties with irrigated areas greater than or equal to 10,000 square feet. This program is intended for: landscape designers, irrigation professionals, builders, landscape installation contractors. SAWS emphasized that the major theme throughout the program is intentionality; designing landscapes and irrigation systems with long-term efficiency, water conservation, and site functionality in mind. Benefits of WaterSaver Pro Participation Projects achieving the WaterSaver Pro designation may qualify for:
WaterSaver Pro Point Categories SAWS outlined four major scoring components:
Additional items discussed during the meeting included:
Pilot Program Participation TNLA discussed the importance of identifying potential pilot participants, particularly:
SAWS indicated they are still refining some program details, including: approved smart controller models, pilot program timelines, communication and submittal procedures At this time, SAWS recommended that participants communicate progress through spreadsheets and submitted irrigation/landscape plans as projects are finalized. Next StepsTNLA is currently gathering interest from members who may want to participate in the pilot program or provide industry feedback as SAWS continues developing the WaterSaver Pro standards. If you are interested in participating in the pilot program or learning more, please contact TNLA. We will coordinate with SAWS regarding next steps and future discussions. Below are the materials SAWS provided outlining:
Contact TNLA’s Legislative & Regulatory Affairs Team
When growers and landscape professionals think about insects, the first thought is often pests and the damage they cause. However, not all insects are harmful. Many beneficial insects play an important role in naturally suppressing pest populations in greenhouses, nurseries, and landscapes. These “good bugs” are valuable partners in Integrated Pest Management (IPM) programs and can help reduce reliance on chemical insecticides. Beneficial insects are a key component of Integrated Pest Management (IPM) programs. They help suppress pests naturally and can improve long-term pest management success when properly conserved or introduced into production systems. Two important groups of beneficial insects are predators and parasitoids. Predators actively consume pests throughout their life cycle. Common examples include lady beetles, green lacewings, minute pirate bugs, predatory mites, and hover fly larvae. These natural enemies feed on aphids, whiteflies, spider mites, scales, thrips, and other soft-bodied pests commonly encountered in Texas greenhouses and landscapes. Parasitoids are specialized insects, usually tiny wasps, that develop inside or on a host insect and eventually kill it. Several parasitoid species are commercially available and widely used in greenhouse biological control programs, especially for whitefly and aphid management. Parasitoids are specialized insects, usually tiny wasps, that develop inside or on a host insect and eventually kill it. Several parasitoid species are commercially available and widely used in greenhouse biological control programs, especially for whitefly and aphid management. Greenhouse environments often provide ideal conditions for biological control because temperature, humidity, and pest populations can be monitored more closely. In landscapes and nurseries, conserving naturally occurring beneficial insects can also provide significant pest suppression over time. Unfortunately, beneficial populations are frequently disrupted by unnecessary or repeated applications of broad-spectrum insecticides. One of the biggest challenges in pest management is recognizing when beneficial insects are already helping control a pest problem. In some situations, professionals may apply insecticides before evaluating predator or parasitoid activity. This can eliminate natural enemies and create secondary pest outbreaks or pest resurgence. In addition, repeated use of the same insecticide groups can contribute to pesticide resistance, making future pest management more difficult. Scouting remains one of the most important tools in preserving beneficial insects. Correct identification of both pests and beneficials allows professionals to make informed treatment decisions. When insecticide applications are necessary, selecting reduced-risk or selective products can help preserve natural enemy populations while still managing key pests. Habitat also plays a role in supporting beneficial insects. Flowering plants, reduced dust, proper irrigation management, and minimizing unnecessary pesticide exposure can all encourage beneficial activity in landscapes and production systems. Biological control is not always a complete replacement for insecticides, but it is an effective management tool when incorporated into a broader IPM strategy. As greenhouse and landscape industries continue to face challenges from invasive pests, environmental concerns, and pesticide resistance, beneficial insects should not be viewed as forgotten tools. Instead, they should be recognized as valuable partners in sustainable pest management programs. Photo credit: Rafia Khan, Ph. D. Assistant Professor and Extension Specialist Texas A&M AgriLife Research and Extension Center Overton, TX. Spring in Texas often brings warm temperatures along with frequent rain and storm events, creating highly favorable conditions for increased pest pressure in nurseries, greenhouses, and landscape systems. Elevated humidity and excess moisture significantly enhance pest development, survival, and reproduction, making this season particularly challenging for growers. These environmental conditions not only accelerate pest life cycles but also create ideal microhabitats for hidden and soil-associated pests, increasing the risk of sudden infestations and economic losses. Favorable Conditions for Pest OutbreaksSoft-bodied insects such as aphids, whiteflies, and thrips thrive under warm, humid conditions commonly observed during spring. The flush of new plant growth during this period provides tender, nutrient-rich tissues that are highly attractive for feeding and reproduction. As a result, pest populations can increase rapidly within a short period, often going unnoticed until visible damage appears. Without timely monitoring and intervention, these pests can quickly reach damaging levels and affect plant quality and marketability. Soil and Moisture Associated Pests Prolonged wet conditions create ideal environments for pests such as fungus gnats and shore flies, particularly in greenhouse and nursery production systems. Their larvae develop in moist growing media, feeding on organic matter and plant roots, which can weaken plants and reduce overall vigor. Additionally, pests like the European pepper moth benefit from high moisture conditions, as their larvae remain concealed in the lower canopy or within the growing media. This hidden feeding behavior, combined with favorable environmental conditions, makes early detection difficult and allows populations to build up before noticeable symptoms appear. Pest Spread and Increased Activity Rainfall and storm events can also contribute to the spread of pests within production systems. Splashing water can move infested soil, plant debris, eggs, and larvae between containers or across growing areas, facilitating rapid dispersal. Furthermore, outdoor pests such as caterpillars and beetles often become more active following rainfall, increasing feeding activity and the likelihood of damage. Wind and storm movement can also aid in dispersing adult insects into new areas, compounding pest pressure. Challenges in Pest Control Frequent rainfall presents additional challenges by reducing the effectiveness of insecticide applications. Rain can wash off residues from plant surfaces, shortening the duration of control and requiring more precise timing of applications. High humidity may also affect product performance and pest exposure, making control less consistent during extended wet periods. Take-Home Message Overall, rainy spring weather creates ideal conditions for pest outbreaks by enhancing survival, reproduction, and spread, while simultaneously reducing control effectiveness. Under these conditions, consistent scouting, proper irrigation management, and timely, integrated interventions are essential to minimize pest impact and maintain plant quality and marketability. Rafia Khan, Ph. D. Assistant Professor and Extension Specialist Texas A&M AgriLife Research and Extension Center, Overton, TX Texas producers and green industry businesses have access to new funding and financing opportunities that may help support growth, equipment upgrades, and long-term investment. The Texas Department of Agriculture (TDA), through the Texas Agricultural Finance Authority (TAFA), is currently offering two programs designed to strengthen agricultural operations and improve access to capital. 1. AgPro Grant Program The Agricultural Production Resource Opportunity (AgPro) Grant Program provides funding to help producers improve, expand, and strengthen their operations. What this can support:
This program is designed for businesses looking to invest in efficiency, innovation, and long-term growth. 2. Agricultural Loan Guarantee (ALG) Program The Texas Agricultural Loan Guarantee (ALG) Program helps increase access to financing by reducing risk for lenders through a state-backed guarantee. What this means for businesses:
Loan guarantees can cover up to 90% of the loan amount, depending on size, helping lenders feel more confident in approving financing. Why This Matters Access to capital continues to be a key challenge for many businesses across the green industry. Programs like these can help:
Strengthen long-term stability Learn More: For full program details and application information: Questions?Casey Corley Couldn’t make it to the Innovation Summit this year? Good news — the recordings are now available, and you can still earn CEUs while learning how technology is reshaping the green industry. These sessions were designed to give you real takeaways you can bring back to your business today. Here’s a look at what you’ll find: Innovation in Sales & Promotions – What the Green Industry Needs NextThe message from participants was clear: businesses want better visibility into the technology market.
Customer Service Gets Smarter with Technology Speaker Eldar Causevic of Denali Green/Aspire Software shared how tech is changing customer service.
Services of the Future – Robotics, Lighting & Automation This session highlighted some of the most exciting advancements:
Bottom line: Companies that embrace automation and smart services now will set the standard for tomorrow. Driving Efficiencies – Smarter Tools for a Smarter Future Efficiency is the key to profitability, and participants explored new tools making a difference:
Key takeaway: The businesses that lean into multi-functional tech will see stronger ROI and be better prepared for workforce challenges. Watch On-Demand & Earn CEUs These recordings aren’t just inspiring — they’re practical. Each one offers actionable strategies and counts toward CEUs.
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October 2026
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